CVE-2020-12279

An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. checkout.c mishandles equivalent filenames that exist because of NTFS short names. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1353.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
libgit2libgit2
𝑥
< 0.28.4
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libgit2
bullseye (security)
1.1.0+dfsg.1-4+deb11u2
fixed
bullseye
1.1.0+dfsg.1-4+deb11u2
fixed
jessie
no-dsa
bookworm
1.5.1+ds-1+deb12u1
fixed
bookworm (security)
1.5.1+ds-1+deb12u1
fixed
trixie
1.8.2~rc1+ds2-1
fixed
sid
1.8.4+ds-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
libgit2
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
ignored
jammy
not-affected
impish
ignored
hirsute
ignored
groovy
ignored
focal
not-affected
eoan
ignored
bionic
Fixed 0.26.0+dfsg.1-1.1ubuntu0.2+esm1
released
xenial
Fixed 0.24.1-2ubuntu0.2+esm2
released
trusty
needed
Common Weakness Enumeration
References
https://github.com/git/git/security/advisories/GHSA-589j-mmg9-733v
https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4
https://github.com/libgit2/libgit2/releases/tag/v0.28.4
https://github.com/libgit2/libgit2/releases/tag/v0.99.0
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html
https://github.com/git/git/security/advisories/GHSA-589j-mmg9-733v
https://github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4
https://github.com/libgit2/libgit2/releases/tag/v0.28.4
https://github.com/libgit2/libgit2/releases/tag/v0.99.0
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
https://lists.debian.org/debian-lts-announce/2023/02/msg00034.html