CVE-2012-5838: Mozilla: Use-after-free, buffer overflow, and memory corruption issues found using Address Sanitizer (MFSA 2012-106)

Severity: Critical

CVSS Score: 9.3

The copyTexImage2D implementation in the WebGL subsystem in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via large image dimensions.