CVE-2025-48386

NameCVE-2025-48386
DescriptionGit is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. The wincred credential helper uses a static buffer (target) as a unique key for storing and comparing against internal storage. This credential helper does not properly bounds check the available space remaining in the buffer before appending to it with wcsncat(), leading to potential buffer overflows. This vulnerability is fixed in v2.43.7, v2.44.4, v2.45.4, v2.46.4, v2.47.3, v2.48.2, v2.49.1, and v2.50.1.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1108983

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
git (PTS)bullseye1:2.30.2-1+deb11u2vulnerable
bullseye (security)1:2.30.2-1+deb11u4vulnerable
bookworm, bookworm (security)1:2.39.5-0+deb12u2vulnerable
trixie1:2.47.2-0.2vulnerable
sid1:2.50.0-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gitsource(unstable)(unfixed)1108983

Notes

https://github.com/git/git/security/advisories/GHSA-4v56-3xvj-xvfr
https://lore.kernel.org/git/xmqq5xg2wrd1.fsf@gitster.g/
Fixed by: https://github.com/git/git/commit/9de345cb273cc7faaeda279c7e07149d8a15a319 (v2.43.7)

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