Description
Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio.
References
https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html
https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch
https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 · High
CVSS V3.1
CVSS V3.0
CVSS V2.0
Information
Source identifier
Vulnerability status
Modified
Published
2021-04-29T21:15:08.550
4 years agoLast modified
2023-11-07T03:32:37.367
1 year ago