Integer overflow in the authenticate_post function in CGit before 0.12 allows remote attackers to have unspecified impact via a large value in the Content-Length HTTP header, which triggers a buffer overflow.
http://www.openwall.com/lists/oss-security/2016/01/14/6
http://www.debian.org/security/2016/dsa-3545
http://lists.zx2c4.com/pipermail/cgit/2016-January/002817.html
http://lists.opensuse.org/opensuse-updates/2016-01/msg00084.html
http://lists.opensuse.org/opensuse-updates/2016-01/msg00067.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176198.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176167.html
http://git.zx2c4.com/cgit/commit/?id=4458abf64172a62b92810c2293450106e6dfc763