Vulnerability in Libgit2
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.052 (92.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.052 · change: +0.001
Affected products
- Libgit2
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/libgit2/libgit2/releases/tag/v0.99.0 (Third Party Advisory, Release Notes)
- github.com/libgit2/libgit2/releases/tag/v0.28.4 (Third Party Advisory, Release Notes)
- github.com/git/git/security/advisories/GHSA-589j-mmg9-733v (Patch, Third Party Advisory)
- github.com/libgit2/libgit2/commit/64c612cc3e25eff5fb02c59ef5a66ba7a14751e4 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/03/msg00031.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/02/msg00034.html (mailing-list)
Frequently asked questions
- What is CVE-2020-12279?
- CVE-2020-12279 is a critical-severity vulnerability in Libgit2, classified under Use of Incorrectly-Resolved Name or Reference. CVSS score: 9.8/10. Published 2020-04-27.
- How severe is CVE-2020-12279?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-12279 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.