SB2016041315 - Input validation error in Mercurial

Description

This security bulletin contains information about 1 security vulnerability.

1) Input validation error (CVE-ID: CVE-2015-7545)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The (1) git-remote-ext and (2) unspecified other remote helper programs in Git before 2.3.10, 2.4.x before 2.4.10, 2.5.x before 2.5.4, and 2.6.x before 2.6.1 do not properly restrict the allowed protocols, which might allow remote attackers to execute arbitrary code via a URL in a (a) .gitmodules file or (b) unknown other sources in a submodule.

Remediation

Install update from vendor's website.

References

• http://lists.opensuse.org/opensuse-updates/2015-11/msg00066.html
• http://rhn.redhat.com/errata/RHSA-2015-2515.html
• http://www.debian.org/security/2016/dsa-3435
• http://www.openwall.com/lists/oss-security/2015/12/08/5
• http://www.openwall.com/lists/oss-security/2015/12/09/8
• http://www.openwall.com/lists/oss-security/2015/12/11/7
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
• http://www.securityfocus.com/bid/78711
• http://www.securitytracker.com/id/1034501
• http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.533255
• http://www.ubuntu.com/usn/USN-2835-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1269794
• https://github.com/git/git/blob/master/Documentation/RelNotes/2.3.10.txt
• https://github.com/git/git/blob/master/Documentation/RelNotes/2.4.10.txt
• https://github.com/git/git/blob/master/Documentation/RelNotes/2.5.4.txt
• https://github.com/git/git/blob/master/Documentation/RelNotes/2.6.1.txt
• https://kernel.googlesource.com/pub/scm/git/git/+/33cfccbbf35a56e190b79bdec5c85457c952a021
• https://lkml.org/lkml/2015/10/5/683
• https://security.gentoo.org/glsa/201605-01