CVE-2011-2378

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 3.6.20 Thunderbird versions prior to 3.1.12 SeaMonkey versions 2.x

Description The issue is related to the appendChild function not properly handling DOM objects, allowing remote attackers to execute arbitrary code via unspecified vectors that lead to dereferencing of a "dangling pointer."

Recommendations For Mozilla Firefox versions prior to 3.6.20, update to version 3.6.20 or later. For Thunderbird versions prior to 3.1.12, update to version 3.1.12 or later. For SeaMonkey versions 2.x, consider disabling the appendChild function as a temporary workaround until a patch is available.