revision.c in git before 2.7.4 uses an incorrect integer data type, which allows remote attackers to execute arbitrary code via a (1) long filename or (2) many nested trees, leading to a heap-based buffer overflow.
https://security.gentoo.org/glsa/201605-01
https://raw.githubusercontent.com/git/git/master/Documentation/RelNotes/2.7.4.txt
https://github.com/git/git/commit/de1e67d0703894cb6ea782e36abb63976ab07e60
https://github.com/git/git/commit/34fa79a6cde56d6d428ab0d3160cb094ebad3305
http://www.ubuntu.com/usn/USN-2938-1
http://www.securitytracker.com/id/1035290
http://www.securityfocus.com/bid/84355
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.openwall.com/lists/oss-security/2016/03/15/5
http://www.debian.org/security/2016/dsa-3521
http://rhn.redhat.com/errata/RHSA-2016-0496.html
http://lists.opensuse.org/opensuse-updates/2016-04/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00077.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00076.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00074.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00071.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00062.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00061.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00059.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/180763.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/179121.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183147.html