Mozilla

Mozilla

Mozilla Foundation Security Advisory 2012-31

Off-by-one error in OpenType Sanitizer

Announced
April 24, 2012
Reporter
Mateusz Jurczyk
Impact
Critical
Products
Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR
Fixed in
  • Firefox 12
  • Firefox ESR 10.0.4
  • SeaMonkey 2.9
  • Thunderbird 12
  • Thunderbird ESR 10.0.4

Description

Mateusz Jurczyk of the Google Security Team discovered an off-by-one error in the OpenType Sanitizer using the Address Sanitizer tool. This can lead to an out-of-bounds read and execution of an uninitialized function pointer during parsing and possible remote code execution.

References