The web interface in git (gitweb) 1.5.x before 1.5.5 allows remote attackers to execute arbitrary commands via shell metacharacters related to git_search.
https://issues.rpath.com/browse/RPL-2936
https://bugzilla.redhat.com/show_bug.cgi?id=479715
http://www.vupen.com/english/advisories/2009/0175
http://www.ubuntu.com/usn/USN-723-1
http://www.securityfocus.com/archive/1/500008/100/0/threaded
http://www.openwall.com/lists/oss-security/2009/01/23/2
http://www.openwall.com/lists/oss-security/2009/01/21/7
http://www.openwall.com/lists/oss-security/2009/01/20/1
http://www.gentoo.org/security/en/glsa/glsa-200903-15.xml
http://www.debian.org/security/2009/dsa-1708
http://wiki.rpath.com/Advisories:rPSA-2009-0005
http://securityreason.com/securityalert/4919
http://secunia.com/advisories/34194
http://secunia.com/advisories/33964
http://repo.or.cz/w/git.git?a=commitdiff%3Bh=c582abae
http://lists.opensuse.org/opensuse-security-announce/2009-01/msg00002.html