Mozilla

Mozilla Foundation Security Advisory 2012-26

WebGL.drawElements may read illegal video memory due to FindMaxUshortElement error

Announced
April 24, 2012
Reporter
Matias Juntunen
Impact
High
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

Mozilla community member Matias Juntunen discovered an error in WebGLBuffer where FindMaxElementInSubArray receives wrong template arguments from FindMaxUshortElement. This bug causes maximum index to be computed incorrectly within WebGL.drawElements, allowing the reading of illegal video memory.

References