CVE-2012-1974

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 15.0 Firefox ESR 10.x versions prior to 10.0.7 Thunderbird versions prior to 15.0 Thunderbird ESR 10.x versions prior to 10.0.7 SeaMonkey versions prior to 2.12

Description The issue allows remote attackers to execute arbitrary code or cause a denial of service due to heap memory corruption via unspecified vectors. This is related to a use-after-free vulnerability in the gfxTextRun::CanBreakLineBefore function.

Recommendations For Mozilla Firefox versions prior to 15.0, update to version 15.0 or later. For Firefox ESR 10.x versions prior to 10.0.7, update to version 10.0.7 or later. For Thunderbird versions prior to 15.0, update to version 15.0 or later. For Thunderbird ESR 10.x versions prior to 10.0.7, update to version 10.0.7 or later. For SeaMonkey versions prior to 2.12, update to version 2.12 or later.