fkie_cve-2022-41903
Vulnerability from fkie_nvd
Published
2023-01-17 23:15
Modified
2024-11-21 07:24
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Git is distributed revision control system. `git log` can display commits in an arbitrary format using its `--format` specifiers. This functionality is also exposed to `git archive` via the `export-subst` gitattribute. When processing the padding operators, there is a integer overflow in `pretty.c::format_and_pad_commit()` where a `size_t` is stored improperly as an `int`, and then added as an offset to a `memcpy()`. This overflow can be triggered directly by a user running a command which invokes the commit formatting machinery (e.g., `git log --format=...`). It may also be triggered indirectly through git archive via the export-subst mechanism, which expands format specifiers inside of files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may result in arbitrary 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. Users who are unable to upgrade should disable `git archive` in untrusted repositories. If you expose git archive via `git daemon`, disable it by running `git config --global daemon.uploadArch false`.
References
security-advisories@github.comhttps://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_substVendor Advisory
security-advisories@github.comhttps://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncemVendor Advisory
security-advisories@github.comhttps://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76Patch, Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwqThird Party Advisory
security-advisories@github.comhttps://security.gentoo.org/glsa/202312-15
af854a3a-2127-422b-91ae-364da2661108https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_substVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncemVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76Patch, Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwqThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202312-15
Impacted products
Vendor Product Version
git-scm git *
git-scm git *
git-scm git *
git-scm git *
git-scm git *
git-scm git *
git-scm git *
git-scm git *
git-scm git *
git-scm git 2.39.0


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "8D0B133C-FC2B-4CBF-8840-C85F6D650510",
                     versionEndIncluding: "2.30.6",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "BA5113C4-D095-4E76-A6C6-F849E11DFA9D",
                     versionEndIncluding: "2.31.5",
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                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
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                     versionEndIncluding: "2.32.4",
                     versionStartIncluding: "2.32.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "C9162726-CACE-4CB9-ACDE-204655D6BB3B",
                     versionEndIncluding: "2.33.5",
                     versionStartIncluding: "2.33.0",
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                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "65D149AF-5604-4109-A60B-CB7B5BBBEE87",
                     versionEndIncluding: "2.34.5",
                     versionStartIncluding: "2.34.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
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                     versionEndIncluding: "2.35.5",
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                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
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                     criteria: "cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "28F8851A-1566-4F16-AEC4-2C09AC866C2A",
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                     versionStartIncluding: "2.38.0",
                     vulnerable: true,
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                     criteria: "cpe:2.3:a:git-scm:git:2.39.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "CC98AC76-7F3E-45A0-9DE6-3D097CEE5199",
                     vulnerable: true,
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               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "Git is distributed revision control system. `git log` can display commits in an arbitrary format using its `--format` specifiers. This functionality is also exposed to `git archive` via the `export-subst` gitattribute. When processing the padding operators, there is a integer overflow in `pretty.c::format_and_pad_commit()` where a `size_t` is stored improperly as an `int`, and then added as an offset to a `memcpy()`. This overflow can be triggered directly by a user running a command which invokes the commit formatting machinery (e.g., `git log --format=...`). It may also be triggered indirectly through git archive via the export-subst mechanism, which expands format specifiers inside of files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may result in arbitrary 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. Users who are unable to upgrade should disable `git archive` in untrusted repositories. If you expose git archive via `git daemon`, disable it by running `git config --global daemon.uploadArch false`.",
      },
      {
         lang: "es",
         value: "Git es un sistema de control de revisiones distribuido. `git log` puede mostrar confirmaciones en un formato arbitrario usando sus especificadores `--format`. Esta funcionalidad también está expuesta a \"git archive\" a través del atributo git \"export-subst\". Al procesar los operadores de relleno, hay un desbordamiento de enteros en `pretty.c::format_and_pad_commit()` donde `size_t` se almacena incorrectamente como `int` y luego se agrega como un desplazamiento a `memcpy()`. Este desbordamiento puede ser desencadenado directamente por un usuario que ejecuta un comando que invoca la maquinaria de formato de commit (por ejemplo, `git log --format=...`). También se puede activar indirectamente a través del archivo git mediante el mecanismo export-subst, que expande los especificadores de formato dentro de los archivos dentro del repositorio durante un archivo git. Este desbordamiento de enteros puede dar lugar a escrituras arbitrarias en el almacenamiento dinámico, lo que puede dar lugar a la ejecución de código arbitrario. El problema ha sido solucionado en las versiones publicadas el 17-01-2023, remontándose a la v2.30.7. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben desactivar \"git archive\" en repositorios que no sean de confianza. Si expone el archivo git a través de `git daemon`, desactívelo ejecutando `git config --global daemon.uploadArch false`.",
      },
   ],
   id: "CVE-2022-41903",
   lastModified: "2024-11-21T07:24:01.993",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               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",
            },
            exploitabilityScore: 3.9,
            impactScore: 5.9,
            source: "security-advisories@github.com",
            type: "Secondary",
         },
         {
            cvssData: {
               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",
            },
            exploitabilityScore: 3.9,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2023-01-17T23:15:15.690",
   references: [
      {
         source: "security-advisories@github.com",
         tags: [
            "Vendor Advisory",
         ],
         url: "https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst",
      },
      {
         source: "security-advisories@github.com",
         tags: [
            "Vendor Advisory",
         ],
         url: "https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem",
      },
      {
         source: "security-advisories@github.com",
         tags: [
            "Patch",
            "Release Notes",
            "Third Party Advisory",
         ],
         url: "https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76",
      },
      {
         source: "security-advisories@github.com",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq",
      },
      {
         source: "security-advisories@github.com",
         url: "https://security.gentoo.org/glsa/202312-15",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Vendor Advisory",
         ],
         url: "https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
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         ],
         url: "https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
            "Release Notes",
            "Third Party Advisory",
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         url: "https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
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         url: "https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://security.gentoo.org/glsa/202312-15",
      },
   ],
   sourceIdentifier: "security-advisories@github.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-190",
            },
         ],
         source: "security-advisories@github.com",
         type: "Primary",
      },
   ],
}


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