PostgreSQL before 9.1.20, 9.2.x before 9.2.15, 9.3.x before 9.3.11, 9.4.x before 9.4.6, and 9.5.x before 9.5.1 allows remote attackers to cause a denial of service (infinite loop or buffer overflow and crash) via a large Unicode character range in a regular expression.
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177820.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177878.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00052.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00054.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00056.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00016.html
http://rhn.redhat.com/errata/RHSA-2016-1060.html
https://kc.mcafee.com/corporate/index?page=content&id=SB10152
https://security.gentoo.org/glsa/201701-33
http://www.debian.org/security/2016/dsa-3475
http://www.debian.org/security/2016/dsa-3476
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.postgresql.org/about/news/1644/
http://www.postgresql.org/docs/current/static/release-9-1-20.html
http://www.postgresql.org/docs/current/static/release-9-2-15.html
http://www.postgresql.org/docs/current/static/release-9-3-11.html
http://www.postgresql.org/docs/current/static/release-9-4-6.html
http://www.postgresql.org/docs/current/static/release-9-5-1.html