Input validation error in Git - CVE-2014-9390
Published: February 12, 2020 / Updated: July 29, 2020
Vulnerability identifier: #VU32461
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-9390
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Affected software
Git
Gentoo Linux
Fedora
git (Alpine package)
eclipse-egit
eclipse-jgit
Gentoo Linux
Fedora
git (Alpine package)
eclipse-egit
eclipse-jgit
How to mitigate CVE-2014-9390
Install update from vendor's website.
Git - addressed in versions 1.8.5.6, 1.9.5, 2.0.5, 2.1.4, 2.2.1
git (Alpine package) - update to 1.8.5.6-r0
eclipse-egit - update to 3.5.3-1.fc21
eclipse-jgit - update to 3.5.3-1.fc21
git (Alpine package) - update to 1.8.5.6-r0
eclipse-egit - update to 3.5.3-1.fc21
eclipse-jgit - update to 3.5.3-1.fc21
Links to Public Exploits and PoC-codes
External References
- 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
- https://github.com/blog/1938-git-client-vulnerability-announced
- https://news.ycombinator.com/item?id=8769667