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Mozilla Foundation Security Advisory 2014-89

Bad casting from the BasicThebesLayer to BasicContainerLayer

Announced
December 2, 2014
Reporter
Byoungyoung Lee, Chengyu Song, Taesoo Kim
Impact
High
Products
Firefox, Firefox ESR, Firefox OS, SeaMonkey, Thunderbird
Fixed in
  • Firefox 34
  • Firefox ESR 31.3
  • Firefox OS 2.2
  • SeaMonkey 2.31
  • Thunderbird 31.3

Description

Security researchers Byoungyoung Lee, Chengyu Song, and Taesoo Kim at the Georgia Tech Information Security Center (GTISC) reported a bad casting from the BasicThebesLayer to BasicContainerLayer, resulting in undefined behavior. This behavior is potentially exploitable with some compilers but no clear mechanism to trigger it through web content was identified.

References