CVE-2022-41903 (GCVE-0-2022-41903)

Vulnerability from cvelistv5 – Published: 2023-01-17 22:17 – Updated: 2025-03-10 21:21
VLAI
Title
Integer overflow in `git archive`, `git log --format` leading to RCE in git
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`.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
git git Affected: < 2.30.7
Affected: >= 2.31.0, < 2.31.6
Affected: >= 2.32.0, < 2.32.5
Affected: >= 2.33.0, < 2.33.6
Affected: >= 2.34.0, < 2.34.6
Affected: >= 2.35.0, < 2.35.6
Affected: >= 2.36.0, < 2.36.4
Affected: >= 2.37.0, < 2.37.5
Affected: >= 2.38.0, < 2.38.3
Affected: = 2.39.0
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq\", \"name\": \"https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76\", \"name\": \"https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst\", \"name\": \"https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem\", \"name\": \"https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://security.gentoo.org/glsa/202312-15\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T12:56:38.383Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-41903\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-03-10T20:59:12.527761Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-03-10T20:59:13.878Z\"}}], \"cna\": {\"title\": \"Integer overflow in `git archive`, `git log --format` leading to RCE in git\", \"source\": {\"advisory\": \"GHSA-475x-2q3q-hvwq\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"git\", \"product\": \"git\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 2.30.7\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.31.0, \u003c 2.31.6\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.32.0, \u003c 2.32.5\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.33.0, \u003c 2.33.6\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.34.0, \u003c 2.34.6\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.35.0, \u003c 2.35.6\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.36.0, \u003c 2.36.4\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.37.0, \u003c 2.37.5\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.38.0, \u003c 2.38.3\"}, {\"status\": \"affected\", \"version\": \"= 2.39.0\"}]}], \"references\": [{\"url\": \"https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq\", \"name\": \"https://github.com/git/git/security/advisories/GHSA-475x-2q3q-hvwq\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76\", \"name\": \"https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst\", \"name\": \"https://git-scm.com/book/en/v2/Customizing-Git-Git-Attributes#_export_subst\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem\", \"name\": \"https://git-scm.com/docs/pretty-formats#Documentation/pretty-formats.txt-emltltNgttruncltruncmtruncem\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://security.gentoo.org/glsa/202312-15\"}], \"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`.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-190\", \"description\": \"CWE-190: Integer Overflow or Wraparound\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2023-12-27T10:06:32.604Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-41903\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-03-10T21:21:50.039Z\", \"dateReserved\": \"2022-09-30T16:38:28.931Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-01-17T22:17:16.123Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.