The Intel drivers in Mesa 8.0.x and 9.0.x allow context-dependent attackers to cause a denial of service (reachable assertion and crash) and possibly execute arbitrary code via vectors involving 3d graphics that trigger an out-of-bounds array access, related to the fs_visitor::remove_dead_constants function. NOTE: this issue might be related to CVE-2013-0796.

The WebGL subsystem in Mozilla Firefox before 20.0, Firefox ESR 17.x before 17.0.5, Thunderbird before 17.0.5, Thunderbird ESR 17.x before 17.0.5, and SeaMonkey before 2.17 on Linux does not properly interact with Mesa drivers, which allows remote attackers to execute arbitrary code or cause a denial of service (free of unallocated memory) via unspecified vectors.