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CVE-2022-23521

CVE-2022-23521 · gitattributes parsing integer overflow in git

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

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.

CVSS 9.8 · Crítica · EPSS 56,3% · Corrección disponible

Publicación
Actualización

Pila tecnológica: system

Productos y versiones afectados

  • git

    Versiones
    • < 2.30.7: Afectada
    • >= 2.31.0, < 2.31.6: Afectada
    • >= 2.32.0, < 2.32.5: Afectada
    • >= 2.33.0, < 2.33.6: Afectada
    • >= 2.34.0, < 2.34.6: Afectada
    • >= 2.35.0, < 2.35.6: Afectada
    • >= 2.36.0, < 2.36.4: Afectada
    • >= 2.37.0, < 2.37.5: Afectada
    • >= 2.38.0, < 2.38.3: Afectada
    • = 2.39.0: Afectada

    Sin corrección publicada

  • git Debian:12

    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.39.1-0.1

    Actualiza a 1:2.39.1-0.1

  • git Debian:13

    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.39.1-0.1

    Actualiza a 1:2.39.1-0.1

  • git Debian:14

    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.39.1-0.1

    Actualiza a 1:2.39.1-0.1

  • git Ubuntu:Pro:14.04:LTS

    Versiones
    • 1:1.8.3.2-1
    • 1:1.8.4.2-1
    • 1:1.8.4.3-1
    • 1:1.8.4.4-1
    • 1:1.8.5-1
    • 1:1.8.5.1-1
    • 1:1.8.5.2-1
    • 1:1.8.5.2-2
    • 1:1.8.5.3-1
    • 1:1.9~rc1-1
    • 1:1.9.0-1
    • 1:1.9.1-1
    • 1:1.9.1-1ubuntu0.1
    • 1:1.9.1-1ubuntu0.2
    • 1:1.9.1-1ubuntu0.3
    • 1:1.9.1-1ubuntu0.4
    • 1:1.9.1-1ubuntu0.5
    • 1:1.9.1-1ubuntu0.6
    • 1:1.9.1-1ubuntu0.7
    • 1:1.9.1-1ubuntu0.8
    • 1:1.9.1-1ubuntu0.9
    • 1:1.9.1-1ubuntu0.10
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:1.9.1-1ubuntu0.10+esm1

    Actualiza a 1:1.9.1-1ubuntu0.10+esm1

  • git Ubuntu:Pro:16.04:LTS

    Versiones
    • 1:2.5.0-1
    • 1:2.6.2-1
    • 1:2.6.3-1
    • 1:2.6.4-1
    • 1:2.7.0~rc3-1
    • 1:2.7.0-1
    • 1:2.7.3-0ubuntu1
    • 1:2.7.4-0ubuntu1
    • 1:2.7.4-0ubuntu1.1
    • 1:2.7.4-0ubuntu1.2
    • 1:2.7.4-0ubuntu1.3
    • 1:2.7.4-0ubuntu1.4
    • 1:2.7.4-0ubuntu1.5
    • 1:2.7.4-0ubuntu1.6
    • 1:2.7.4-0ubuntu1.7
    • 1:2.7.4-0ubuntu1.8
    • 1:2.7.4-0ubuntu1.9
    • 1:2.7.4-0ubuntu1.10
    • 1:2.7.4-0ubuntu1.10+esm1
    • 1:2.7.4-0ubuntu1.10+esm3
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.7.4-0ubuntu1.10+esm4

    Actualiza a 1:2.7.4-0ubuntu1.10+esm4

  • git Ubuntu:18.04:LTS

    Versiones
    • 1:2.14.1-1ubuntu4
    • 1:2.15.1-1ubuntu2
    • 1:2.17.0-1ubuntu1
    • 1:2.17.1-1ubuntu0.1
    • 1:2.17.1-1ubuntu0.3
    • 1:2.17.1-1ubuntu0.4
    • 1:2.17.1-1ubuntu0.5
    • 1:2.17.1-1ubuntu0.6
    • 1:2.17.1-1ubuntu0.7
    • 1:2.17.1-1ubuntu0.8
    • 1:2.17.1-1ubuntu0.9
    • 1:2.17.1-1ubuntu0.10
    • 1:2.17.1-1ubuntu0.11
    • 1:2.17.1-1ubuntu0.12
    • 1:2.17.1-1ubuntu0.13
    • 1:2.17.1-1ubuntu0.14
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.17.1-1ubuntu0.15

    Actualiza a 1:2.17.1-1ubuntu0.15

  • git Ubuntu:20.04:LTS

    Versiones
    • 1:2.20.1-2ubuntu1
    • 1:2.24.0-1ubuntu1
    • 1:2.24.0-1ubuntu2
    • 1:2.25.0-1ubuntu1
    • 1:2.25.1-1ubuntu1
    • 1:2.25.1-1ubuntu2
    • 1:2.25.1-1ubuntu3
    • 1:2.25.1-1ubuntu3.1
    • 1:2.25.1-1ubuntu3.2
    • 1:2.25.1-1ubuntu3.3
    • 1:2.25.1-1ubuntu3.4
    • 1:2.25.1-1ubuntu3.5
    • 1:2.25.1-1ubuntu3.6
    • 1:2.25.1-1ubuntu3.7
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.25.1-1ubuntu3.8

    Actualiza a 1:2.25.1-1ubuntu3.8

  • git Ubuntu:22.04:LTS

    Versiones
    • 1:2.32.0-1ubuntu1
    • 1:2.33.1-1ubuntu1
    • 1:2.34.1-1ubuntu1
    • 1:2.34.1-1ubuntu1.1
    • 1:2.34.1-1ubuntu1.2
    • 1:2.34.1-1ubuntu1.4
    • 1:2.34.1-1ubuntu1.5
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1:2.34.1-1ubuntu1.6

    Actualiza a 1:2.34.1-1ubuntu1.6

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