#VU86204 Use of Incorrectly-Resolved Name or Reference in libgit2 - CVE-2020-12279

Vulnerability identifier: #VU86204

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2020-12279

CWE-ID: CWE-706

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
libgit2

Software vendor:
libgit2.github.com

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper handling of equivalent filenames that exist because of NTFS short names in checkout.c. A remote attacker can trick the victim into cloning a specially crafted repository and execute arbitrary code on the system.

Install updates from vendor's website.

• https://github.com/libgit2/libgit2/releases/tag/v0.28.4
• https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4
• https://github.com/libgit2/libgit2/releases/tag/v0.99.0
• https://github.com/git/git/security/advisories/GHSA-589j-mmg9-733v
• https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
• https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html