CVE-2012-4216: Mozilla: Use-after-free and buffer overflow issues found using Address Sanitizer (MFSA 2012-105)

Severity: Critical

CVSS Score: 9.3

Use-after-free vulnerability in the gfxFont::GetFontEntry function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.