GSD-2022-23521

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue.
Aliases
Aliases
CVE-2022-23521
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{
  "GSD": {
    "alias": "CVE-2022-23521",
    "id": "GSD-2022-23521",
    "references": [
      "https://alas.aws.amazon.com/cve/html/CVE-2022-23521.html",
      "https://advisories.mageia.org/CVE-2022-23521.html",
      "https://access.redhat.com/errata/RHSA-2023:0596",
      "https://access.redhat.com/errata/RHSA-2023:0597",
      "https://access.redhat.com/errata/RHSA-2023:0599",
      "https://access.redhat.com/errata/RHSA-2023:0609",
      "https://access.redhat.com/errata/RHSA-2023:0610",
      "https://access.redhat.com/errata/RHSA-2023:0611",
      "https://access.redhat.com/errata/RHSA-2023:0627",
      "https://access.redhat.com/errata/RHSA-2023:0628",
      "https://access.redhat.com/errata/RHSA-2023:0978",
      "https://www.suse.com/security/cve/CVE-2022-23521.html",
      "https://ubuntu.com/security/CVE-2022-23521"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-23521"
      ],
      "details": "Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue.",
      "id": "GSD-2022-23521",
      "modified": "2023-12-13T01:19:35.388840Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2022-23521",
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      "affects": {
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                    "product_name": "git",
                    "version": {
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                          "version_affected": "=",
                          "version_value": "\u003c 2.30.7"
                        },
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                          "version_affected": "=",
                          "version_value": "\u003e= 2.31.0, \u003c 2.31.6"
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                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 2.32.0, \u003c 2.32.5"
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                          "version_affected": "=",
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                          "version_affected": "=",
                          "version_value": "\u003e= 2.37.0, \u003c 2.37.5"
                        },
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                          "version_affected": "=",
                          "version_value": "\u003e= 2.38.0, \u003c 2.38.3"
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      "description": {
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            "value": "Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
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      },
      "problemtype": {
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            "description": [
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                "cweId": "CWE-190",
                "lang": "eng",
                "value": "CWE-190: Integer Overflow or Wraparound"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
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            "name": "https://github.com/git/git/security/advisories/GHSA-c738-c5qq-xg89",
            "refsource": "MISC",
            "url": "https://github.com/git/git/security/advisories/GHSA-c738-c5qq-xg89"
          },
          {
            "name": "https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76",
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            "url": "https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76"
          },
          {
            "name": "https://security.gentoo.org/glsa/202312-15",
            "refsource": "MISC",
            "url": "https://security.gentoo.org/glsa/202312-15"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-c738-c5qq-xg89",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "cve": {
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            "lang": "en",
            "value": "Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted `.gitattributes` file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. The problem has been patched in the versions published on 2023-01-17, going back to v2.30.7. Users are advised to upgrade. There are no known workarounds for this issue."
          }
        ],
        "id": "CVE-2022-23521",
        "lastModified": "2023-12-27T10:15:36.893",
        "metrics": {
          "cvssMetricV31": [
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              "cvssData": {
                "attackComplexity": "LOW",
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        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Modified",
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                "value": "CWE-190"
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            "source": "security-advisories@github.com",
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    }
  }
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.