X X.Org X11 vulnerabilities

CVE-2012-0064 [MEDIUM] CWE-264 CVE-2012-0064: xkeyboard-config before 2.5 in X.Org before 7.6 enables certain XKB debugging functions by default, xkeyboard-config before 2.5 in X.Org before 7.6 enables certain XKB debugging functions by default, which allows physically proximate attackers to bypass an X screen lock via keyboard combinations that break the input grab.

CVE-2013-4396 [MEDIUM] CWE-399 CVE-2013-4396: Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

CVE-2012-1699 [LOW] CWE-119 CVE-2012-1699: The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6. The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6 through X11R6.6 and XFree86 before 3.3.3 calls the SendErrToClient function with a mask value instead of a pointer, which allows local users to cause a denial of service (memory corruption and crash) or obtain potentially sensitive information from memory via a SetEvent