Multiple memory leaks in the x11_init_protocol function in epan/dissectors/packet-x11.c in the X11 dissector in Wireshark 1.10.x before 1.10.14 and 1.12.x before 1.12.5 allow remote attackers to cause a denial of service (memory consumption) via a crafted packet.
rhn.redhat.com/errata/RHSA-2017-0631.html
www.debian.org/security/2015/dsa-3277
www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
www.securityfocus.com/bid/74637
www.wireshark.org/security/wnpa-sec-2015-15.html
bugs.wireshark.org/bugzilla/show_bug.cgi?id=11088
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=b8ccc2a6add29823a0ff0492fc50372449007e7b
security.gentoo.org/glsa/201510-03