CVE-2019-9515 (GCVE-0-2019-9515)
Vulnerability from cvelistv5
Published
2019-08-13 20:50
Modified
2024-08-04 21:54
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Summary
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
References
https://kb.cert.org/vuls/id/605641/ third-party-advisory, x_refsource_CERT-VN
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md x_refsource_MISC
https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3E mailing-list, x_refsource_MLIST
https://seclists.org/bugtraq/2019/Aug/24 mailing-list, x_refsource_BUGTRAQ
http://seclists.org/fulldisclosure/2019/Aug/16 mailing-list, x_refsource_FULLDISC
https://www.synology.com/security/advisory/Synology_SA_19_33 x_refsource_CONFIRM
https://support.f5.com/csp/article/K50233772 x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-20190823-0005/ x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/ vendor-advisory, x_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/ vendor-advisory, x_refsource_FEDORA
https://seclists.org/bugtraq/2019/Aug/43 mailing-list, x_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4508 vendor-advisory, x_refsource_DEBIAN
https://www.debian.org/security/2019/dsa-4520 vendor-advisory, x_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Sep/18 mailing-list, x_refsource_BUGTRAQ
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html vendor-advisory, x_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html vendor-advisory, x_refsource_SUSE
https://kc.mcafee.com/corporate/index?page=content&id=SB10296 x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:2766 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2796 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2861 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2925 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2939 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2955 vendor-advisory, x_refsource_REDHAT
https://support.f5.com/csp/article/K50233772?utm_source=f5support&amp%3Butm_medium=RSS x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:3892 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4018 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4019 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4021 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4020 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4045 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4042 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4040 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4041 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:4352 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0727 vendor-advisory, x_refsource_REDHAT
https://usn.ubuntu.com/4308-1/ vendor-advisory, x_refsource_UBUNTU
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T21:54:44.327Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "VU#605641",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT-VN",
              "x_transferred"
            ],
            "url": "https://kb.cert.org/vuls/id/605641/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"
          },
          {
            "name": "[trafficserver-dev] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3E"
          },
          {
            "name": "[trafficserver-users] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3E"
          },
          {
            "name": "[trafficserver-announce] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3E"
          },
          {
            "name": "20190814 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2019/Aug/24"
          },
          {
            "name": "20190816 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2019/Aug/16"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.synology.com/security/advisory/Synology_SA_19_33"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K50233772"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190823-0005/"
          },
          {
            "name": "FEDORA-2019-5a6a7bc12c",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/"
          },
          {
            "name": "FEDORA-2019-6a2980de56",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/"
          },
          {
            "name": "20190825 [SECURITY] [DSA 4508-1] h2o security update",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2019/Aug/43"
          },
          {
            "name": "DSA-4508",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4508"
          },
          {
            "name": "DSA-4520",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4520"
          },
          {
            "name": "20190910 [SECURITY] [DSA 4520-1] trafficserver security update",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2019/Sep/18"
          },
          {
            "name": "openSUSE-SU-2019:2114",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html"
          },
          {
            "name": "openSUSE-SU-2019:2115",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10296"
          },
          {
            "name": "RHSA-2019:2766",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2766"
          },
          {
            "name": "RHSA-2019:2796",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2796"
          },
          {
            "name": "RHSA-2019:2861",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2861"
          },
          {
            "name": "RHSA-2019:2925",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2925"
          },
          {
            "name": "RHSA-2019:2939",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2939"
          },
          {
            "name": "RHSA-2019:2955",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2955"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K50233772?utm_source=f5support\u0026amp%3Butm_medium=RSS"
          },
          {
            "name": "RHSA-2019:3892",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3892"
          },
          {
            "name": "RHSA-2019:4018",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4018"
          },
          {
            "name": "RHSA-2019:4019",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4019"
          },
          {
            "name": "RHSA-2019:4021",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4021"
          },
          {
            "name": "RHSA-2019:4020",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4020"
          },
          {
            "name": "RHSA-2019:4045",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4045"
          },
          {
            "name": "RHSA-2019:4042",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4042"
          },
          {
            "name": "RHSA-2019:4040",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4040"
          },
          {
            "name": "RHSA-2019:4041",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4041"
          },
          {
            "name": "RHSA-2019:4352",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:4352"
          },
          {
            "name": "RHSA-2020:0727",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0727"
          },
          {
            "name": "USN-4308-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4308-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Thanks to Jonathan Looney of Netflix for reporting this vulnerability."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-03-30T21:06:04.000Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "name": "VU#605641",
          "tags": [
            "third-party-advisory",
            "x_refsource_CERT-VN"
          ],
          "url": "https://kb.cert.org/vuls/id/605641/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"
        },
        {
          "name": "[trafficserver-dev] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3E"
        },
        {
          "name": "[trafficserver-users] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3E"
        },
        {
          "name": "[trafficserver-announce] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3E"
        },
        {
          "name": "20190814 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2019/Aug/24"
        },
        {
          "name": "20190816 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2019/Aug/16"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.synology.com/security/advisory/Synology_SA_19_33"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.f5.com/csp/article/K50233772"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190823-0005/"
        },
        {
          "name": "FEDORA-2019-5a6a7bc12c",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/"
        },
        {
          "name": "FEDORA-2019-6a2980de56",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/"
        },
        {
          "name": "20190825 [SECURITY] [DSA 4508-1] h2o security update",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2019/Aug/43"
        },
        {
          "name": "DSA-4508",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2019/dsa-4508"
        },
        {
          "name": "DSA-4520",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2019/dsa-4520"
        },
        {
          "name": "20190910 [SECURITY] [DSA 4520-1] trafficserver security update",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2019/Sep/18"
        },
        {
          "name": "openSUSE-SU-2019:2114",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html"
        },
        {
          "name": "openSUSE-SU-2019:2115",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10296"
        },
        {
          "name": "RHSA-2019:2766",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2766"
        },
        {
          "name": "RHSA-2019:2796",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2796"
        },
        {
          "name": "RHSA-2019:2861",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2861"
        },
        {
          "name": "RHSA-2019:2925",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2925"
        },
        {
          "name": "RHSA-2019:2939",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2939"
        },
        {
          "name": "RHSA-2019:2955",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2955"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.f5.com/csp/article/K50233772?utm_source=f5support\u0026amp%3Butm_medium=RSS"
        },
        {
          "name": "RHSA-2019:3892",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3892"
        },
        {
          "name": "RHSA-2019:4018",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4018"
        },
        {
          "name": "RHSA-2019:4019",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4019"
        },
        {
          "name": "RHSA-2019:4021",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4021"
        },
        {
          "name": "RHSA-2019:4020",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4020"
        },
        {
          "name": "RHSA-2019:4045",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4045"
        },
        {
          "name": "RHSA-2019:4042",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4042"
        },
        {
          "name": "RHSA-2019:4040",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4040"
        },
        {
          "name": "RHSA-2019:4041",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4041"
        },
        {
          "name": "RHSA-2019:4352",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:4352"
        },
        {
          "name": "RHSA-2020:0727",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0727"
        },
        {
          "name": "USN-4308-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4308-1/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service",
      "x_generator": {
        "engine": "Vulnogram 0.0.7"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "AKA": "HTTP/2 Settings Flood",
          "ASSIGNER": "cert@cert.org",
          "ID": "CVE-2019-9515",
          "STATE": "PUBLIC",
          "TITLE": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Thanks to Jonathan Looney of Netflix for reporting this vulnerability."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.7"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-400 Uncontrolled Resource Consumption"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "VU#605641",
              "refsource": "CERT-VN",
              "url": "https://kb.cert.org/vuls/id/605641/"
            },
            {
              "name": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md",
              "refsource": "MISC",
              "url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"
            },
            {
              "name": "[trafficserver-dev] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7@%3Cdev.trafficserver.apache.org%3E"
            },
            {
              "name": "[trafficserver-users] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04@%3Cusers.trafficserver.apache.org%3E"
            },
            {
              "name": "[trafficserver-announce] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks",
              "refsource": "MLIST",
              "url": "https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19@%3Cannounce.trafficserver.apache.org%3E"
            },
            {
              "name": "20190814 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2019/Aug/24"
            },
            {
              "name": "20190816 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2019/Aug/16"
            },
            {
              "name": "https://www.synology.com/security/advisory/Synology_SA_19_33",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/security/advisory/Synology_SA_19_33"
            },
            {
              "name": "https://support.f5.com/csp/article/K50233772",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K50233772"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20190823-0005/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20190823-0005/"
            },
            {
              "name": "FEDORA-2019-5a6a7bc12c",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/"
            },
            {
              "name": "FEDORA-2019-6a2980de56",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/"
            },
            {
              "name": "20190825 [SECURITY] [DSA 4508-1] h2o security update",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2019/Aug/43"
            },
            {
              "name": "DSA-4508",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2019/dsa-4508"
            },
            {
              "name": "DSA-4520",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2019/dsa-4520"
            },
            {
              "name": "20190910 [SECURITY] [DSA 4520-1] trafficserver security update",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2019/Sep/18"
            },
            {
              "name": "openSUSE-SU-2019:2114",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html"
            },
            {
              "name": "openSUSE-SU-2019:2115",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html"
            },
            {
              "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10296",
              "refsource": "CONFIRM",
              "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10296"
            },
            {
              "name": "RHSA-2019:2766",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2766"
            },
            {
              "name": "RHSA-2019:2796",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2796"
            },
            {
              "name": "RHSA-2019:2861",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2861"
            },
            {
              "name": "RHSA-2019:2925",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2925"
            },
            {
              "name": "RHSA-2019:2939",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2939"
            },
            {
              "name": "RHSA-2019:2955",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2955"
            },
            {
              "name": "https://support.f5.com/csp/article/K50233772?utm_source=f5support\u0026amp;utm_medium=RSS",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K50233772?utm_source=f5support\u0026amp;utm_medium=RSS"
            },
            {
              "name": "RHSA-2019:3892",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:3892"
            },
            {
              "name": "RHSA-2019:4018",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4018"
            },
            {
              "name": "RHSA-2019:4019",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4019"
            },
            {
              "name": "RHSA-2019:4021",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4021"
            },
            {
              "name": "RHSA-2019:4020",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4020"
            },
            {
              "name": "RHSA-2019:4045",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4045"
            },
            {
              "name": "RHSA-2019:4042",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4042"
            },
            {
              "name": "RHSA-2019:4040",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4040"
            },
            {
              "name": "RHSA-2019:4041",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4041"
            },
            {
              "name": "RHSA-2019:4352",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:4352"
            },
            {
              "name": "RHSA-2020:0727",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0727"
            },
            {
              "name": "USN-4308-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4308-1/"
            }
          ]
        },
        "source": {
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2019-9515",
    "datePublished": "2019-08-13T20:50:59.000Z",
    "dateReserved": "2019-03-01T00:00:00.000Z",
    "dateUpdated": "2024-08-04T21:54:44.327Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.