Git allows a buffer overflow in 'wincred' credential helper

6.3 CVSS

Vulnerability Description

Git 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

https://github.com/git/git/security/advisories/GHSA-4v56-3xvj-xvfr

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Affected Vendor

git

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Affected Software

git

Vulnerable Versions:

< 2.43.7, >= 2.44.0-rc0, < 2.44.4, >= 2.45.0-rc0, < 2.45.4, >= 2.46.0-rc0, < 2.46.4, >= 2.47.0-rc0, < 2.47.3, >= 2.48.0-rc0, < 2.48.2, >= 2.49.0-rc0, < 2.49.1, >= 2.50.0-rc0, < 2.50.1