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Mozilla Foundation Security Advisory 2013-79

Title: Use-after-free in Animation Manager during stylesheet cloning
Impact: Critical
Announced: September 17, 2013
Reporter: Abhishek Arya
Products: Firefox, Thunderbird, Seamonkey

Fixed in: Firefox 24.0
  Firefox ESR 17.0.9
  Thunderbird 24.0
  Thunderbird ESR 17.0.9
  Seamonkey 2.21

Description

Security researcher Abhishek Arya (Inferno) of the Google Chrome Security Team used the Address Sanitizer tool to discover a use-after-free problem in the Animation Manager during the cloning of stylesheets. This can lead to a potentially exploitable crash.

In general this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled, but is potentially a risk in browser or browser-like contexts.

References