CVE-2013-0771: Mozilla: Use-after-free and buffer overflow issues found using Address Sanitizer (MFSA 2013-02)

Severity: Critical

CVSS Score: 9.3

Heap-based buffer overflow in the gfxTextRun::ShrinkToLigatureBoundaries function in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via a crafted document.