CVE-2022-41903

critical · 9.8

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`.

9.8

CVSS

44.3%

EPSS (exploit prob.)

99th

EPSS percentile

2023-01-17

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-190

Affected products

Vendor	Product	Affected versions
git-scm	git	<= 2.30.6
git-scm	git	>= 2.31.0, <= 2.31.5
git-scm	git	>= 2.32.0, <= 2.32.4
git-scm	git	>= 2.33.0, <= 2.33.5
git-scm	git	>= 2.34.0, <= 2.34.5
git-scm	git	>= 2.35.0, <= 2.35.5
git-scm	git	>= 2.36.0, <= 2.36.3
git-scm	git	>= 2.37.0, <= 2.37.4
git-scm	git	>= 2.38.0, <= 2.38.2
git-scm	git	2.39.0

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2022-41903