CVE-2021-29468 – Arbitrary code execution when checking out an attacker-controlled Git branch

https://notcve.org/view.php?id=CVE-2021-29468

29 Apr 2021 — 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... • https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html • CWE-20: Improper Input Validation •