Untrusted Search Path The advisory has been revoked - it doesn't affect any version of package git-lfs (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN11-GITLFS-1063119
- published21 Jan 2021
- disclosed15 Jan 2021
Introduced: 15 Jan 2021
CVE-2021-21237 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:11.
NVD Description
Note: Versions mentioned in the description apply only to the upstream git-lfs package and not the git-lfs package as distributed by Debian.
Git LFS is a command line extension for managing large files with Git. On Windows, if Git LFS operates on a malicious repository with a git.bat or git.exe file in the current directory, that program would be executed, permitting the attacker to execute arbitrary code. This does not affect Unix systems. This is the result of an incomplete fix for CVE-2020-27955. This issue occurs because on Windows, Go includes (and prefers) the current directory when the name of a command run does not contain a directory separator. Other than avoiding untrusted repositories or using a different operating system, there is no workaround. This is fixed in v2.13.2.
References
- https://security-tracker.debian.org/tracker/CVE-2021-21237
- https://github.com/git-lfs/git-lfs/security/advisories/GHSA-cx3w-xqmc-84g5
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27955
- https://github.com/git-lfs/git-lfs/commit/fc664697ed2c2081ee9633010de0a7f9debea72a
- https://github.com/git-lfs/git-lfs/releases/tag/v2.13.2