Important: xorg-x11-server

Issue Overview: Multiple integer overflow flaws and out-of-bounds write flaws were found in the way the X.Org server calculated memory requirements for certain X11 core protocol and GLX extension requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server...

Scientific Linux Security Update : xorg-x11-server on SL6.x, SL7.x i386/x86_64 (20141211)

Multiple integer overflow flaws and out-of-bounds write flaws were found in the way the X.Org server calculated memory requirements for certain X11 core protocol and GLX extension requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server or, potentially...

xorg-x11-server: denial of service due to unchecked malloc in client authentication

It was found that the X.Org server did not properly handle SUN-DES-1 Secure RPC authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request...