XRegion in TigerVNC allows remote VNC servers to cause a denial of service (NULL pointer dereference) by leveraging failure to check a malloc return value, a similar issue to CVE-2014-6052.
seclists.org/oss-sec/2014/q4/278
seclists.org/oss-sec/2014/q4/300
www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
www.securityfocus.com/bid/70390
bugzilla.redhat.com/show_bug.cgi?id=1151312
rhn.redhat.com/errata/RHSA-2015-2233.html