GHSA-6vvc-c2m3-cjf3

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GHSA-6vvc-c2m3-cjf3

Summary: JGit Improper Input Validation vulnerability

Details: Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; mine; libgit2; Egit; and JGit allow remote Git servers to execute arbitrary commands via a tree containing a crafted .git/config file with (1) an ignorable Unicode codepoint, (2) a git~1/config representation, or (3) mixed case that is improperly handled on a case-insensitive filesystem.

References: https://nvd.nist.gov/vuln/detail/CVE-2014-9390, https://github.com/libgit2/libgit2/commit/928429c5c96a701bcbcafacb2421a82602b36915, https://github.com/blog/1938-git-client-vulnerability-announced, https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2020-217.yaml, https://libgit2.org/security, https://news.ycombinator.com/item?id=8769667, https://projects.eclipse.org/projects/technology.jgit/releases/3.5.3, https://web.archive.org/web/20211204220400/https://securitytracker.com/id?1031404, http://article.gmane.org/gmane.linux.kernel/1853266, http://git-blame.blogspot.com/2014/12/git-1856-195-205-214-and-221-and.html, http://mercurial.selenic.com/wiki/WhatsNew, http://securitytracker.com/id?1031404, http://support.apple.com/kb/HT204147