CVE-2017-9798 (GCVE-0-2017-9798)
Vulnerability from cvelistv5
Published
2017-09-18 15:00
Modified
2025-11-04 16:09
Severity ?
CWE
  • use-after-free
Summary
Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.
References
https://access.redhat.com/errata/RHSA-2017:3113 vendor-advisory, x_refsource_REDHAT
http://www.securityfocus.com/bid/100872 vdb-entry, x_refsource_BID
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html x_refsource_CONFIRM
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html x_refsource_CONFIRM
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2017:2882 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2972 vendor-advisory, x_refsource_REDHAT
https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch x_refsource_MISC
https://support.apple.com/HT208331 x_refsource_CONFIRM
http://www.securitytracker.com/id/1039387 vdb-entry, x_refsource_SECTRACK
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2017:3475 vendor-advisory, x_refsource_REDHAT
https://github.com/hannob/optionsbleed x_refsource_MISC
https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:3240 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3195 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3018 vendor-advisory, x_refsource_REDHAT
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2017:3239 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3476 vendor-advisory, x_refsource_REDHAT
http://www.securityfocus.com/bid/105598 vdb-entry, x_refsource_BID
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798 x_refsource_CONFIRM
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2017:3114 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:3477 vendor-advisory, x_refsource_REDHAT
http://openwall.com/lists/oss-security/2017/09/18/2 x_refsource_MISC
https://security.netapp.com/advisory/ntap-20180601-0003/ x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2017:3194 vendor-advisory, x_refsource_REDHAT
https://security-tracker.debian.org/tracker/CVE-2017-9798 x_refsource_MISC
https://access.redhat.com/errata/RHSA-2017:3193 vendor-advisory, x_refsource_REDHAT
http://www.debian.org/security/2017/dsa-3980 vendor-advisory, x_refsource_DEBIAN
https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html x_refsource_MISC
https://www.exploit-db.com/exploits/42745/ exploit, x_refsource_EXPLOIT-DB
https://security.gentoo.org/glsa/201710-32 vendor-advisory, x_refsource_GENTOO
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html x_refsource_MISC
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://www.tenable.com/security/tns-2019-09 x_refsource_CONFIRM
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://github.com/apache/httpd/commit/4cc27823899e070268b906ca677ee838d07cf67a x_refsource_MISC
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E mailing-list, x_refsource_MLIST
Impacted products
Vendor Product Version
Apache Software Foundation Apache HTTP Server Version: Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27
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          },
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            "url": "http://seclists.org/fulldisclosure/2024/Sep/22"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Apache HTTP Server",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "status": "affected",
              "version": "Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27"
            }
          ]
        }
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      "datePublic": "2017-09-18T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user\u0027s .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "use-after-free",
              "lang": "en",
              "type": "text"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-06T10:11:48.000Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
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  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2017-9798",
    "datePublished": "2017-09-18T15:00:00.000Z",
    "dateReserved": "2017-06-21T00:00:00.000Z",
    "dateUpdated": "2025-11-04T16:09:11.219Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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