Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted git ext:: URL when cloning a subrepository.

References

• https://nvd.nist.gov/vuln/detail/CVE-2016-3068
• https://security.gentoo.org/glsa/201612-19
• https://selenic.com/repo/hg-stable/rev/34d43cb85de8
• https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_3.7.3_.282016-3-29.29
• http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181505.html
• http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181542.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00016.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00017.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00018.html
• http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00043.html
• http://rhn.redhat.com/errata/RHSA-2016-0706.html
• http://www.debian.org/security/2016/dsa-3542
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
• https://web.archive.org/web/20200228003737/http://www.securityfocus.com/bid/85733