CVE-2022-49058 (GCVE-0-2022-49058)
Vulnerability from cvelistv5
Published
2025-02-26 01:54
Modified
2026-05-11 18:52
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.
References
Impacted products
Vendor Product Version
Linux Linux Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
Version: c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49058",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:50:01.997451Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-120",
                "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:57:06.701Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/cifs/link.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3e582749e742e662a8e9bb37cffac62dccaaa1e2",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "1316c28569a80ab3596eeab05bf5e01991e7e739",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "eb5f51756944735ac70cd8bb38637cc202e29c91",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "22d658c6c5affed10c8907e67160cef0b6c92186",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "4e166a41180be2f1e66bbb6d46448e80a9a5ec05",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "9901b07ba42b39266b34a888e48d7306fd707bee",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "515e7ba11ef043d6febe69389949c8ef5f25e9d0",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            },
            {
              "lessThan": "64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304",
              "status": "affected",
              "version": "c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/cifs/link.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.37"
            },
            {
              "lessThan": "2.6.37",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.276",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.190",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.311",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.276",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.239",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.190",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.112",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.35",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.4",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "2.6.37",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: potential buffer overflow in handling symlinks\n\nSmatch printed a warning:\n\tarch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error:\n\t__memcpy() \u0027dctx-\u003ebuf\u0027 too small (16 vs u32max)\n\nIt\u0027s caused because Smatch marks \u0027link_len\u0027 as untrusted since it comes\nfrom sscanf(). Add a check to ensure that \u0027link_len\u0027 is not larger than\nthe size of the \u0027link_str\u0027 buffer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:52:12.788Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91"
        },
        {
          "url": "https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05"
        },
        {
          "url": "https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee"
        },
        {
          "url": "https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0"
        },
        {
          "url": "https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304"
        }
      ],
      "title": "cifs: potential buffer overflow in handling symlinks",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49058",
    "datePublished": "2025-02-26T01:54:29.195Z",
    "dateReserved": "2025-02-26T01:49:39.243Z",
    "dateUpdated": "2026-05-11T18:52:12.788Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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.