Mozilla

Mozilla Foundation Security Advisory 2012-96

Memory corruption in str_unescape

Announced
November 20, 2012
Reporter
Scott Bell
Impact
High
Products
Firefox, SeaMonkey, Thunderbird
Fixed in
  • Firefox 17
  • SeaMonkey 2.14
  • Thunderbird 17

Description

Security researcher Scott Bell of Security-Assessment.com used the Address Sanitizer tool to discover a memory corruption in str_unescape in the Javascript engine. This could potentially lead to arbitrary code execution.

In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.

References