critical
9.8
CWE
190
Advisory Published
CVE Published
Updated

CVE-2022-41903: Integer overflow in `git archive`, `git log --format` leading to RCE in git

First published: Tue Jan 17 2023(Updated: )

A flaw was found in Git, a distributed revision control system. This issue occurs due to an 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 the git archive via the export-subst mechanism, which expands format specifiers inside files within the repository during a git archive. This integer overflow can result in arbitrary heap writes, which may allow arbitrary code execution.

Credit: security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
redhat/git<0:1.8.3.1-24.el7_9
0:1.8.3.1-24.el7_9
redhat/git<0:2.31.1-3.el8_7
0:2.31.1-3.el8_7
redhat/git<0:2.18.4-2.el8_1
0:2.18.4-2.el8_1
redhat/git<0:2.18.4-3.el8_2
0:2.18.4-3.el8_2
redhat/git<0:2.27.0-3.el8_4
0:2.27.0-3.el8_4
redhat/git<0:2.31.1-3.el8_6
0:2.31.1-3.el8_6
redhat/git<0:2.31.1-3.el9_1
0:2.31.1-3.el9_1
redhat/git<0:2.31.1-3.el9_0
0:2.31.1-3.el9_0
redhat/rh-git227-git<0:2.27.0-4.el7
0:2.27.0-4.el7
Git Git-shell<=2.30.6
Git Git-shell>=2.31.0<=2.31.5
Git Git-shell>=2.32.0<=2.32.4
Git Git-shell>=2.33.0<=2.33.5
Git Git-shell>=2.34.0<=2.34.5
Git Git-shell>=2.35.0<=2.35.5
Git Git-shell>=2.36.0<=2.36.3
Git Git-shell>=2.37.0<=2.37.4
Git Git-shell>=2.38.0<=2.38.2
Git Git-shell=2.39.0

Remedy

https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2022-41903?

    CVE-2022-41903 is a flaw found in Git, a distributed revision control system, that occurs due to an integer overflow in pretty.c.

  • How does CVE-2022-41903 affect Git?

    CVE-2022-41903 affects Git by causing an integer overflow when processing the padding operators in the --format specifiers of git log and git archive.

  • What is the severity of CVE-2022-41903?

    CVE-2022-41903 has a severity level of 9.8 (critical).

  • Which versions of Git are affected by CVE-2022-41903?

    Git versions 1.8.3.1-24.el7_9 to 2.39.0 are affected by CVE-2022-41903.

  • How can I fix CVE-2022-41903?

    To fix CVE-2022-41903, update Git to a version that includes the necessary security patches.

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