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Mozilla Foundation Security Advisory 2015-131

Vulnerabilities found through code inspection

November 3, 2015
Ronald Crane
Firefox, Firefox ESR, Thunderbird
Fixed in
  • Firefox 42
  • Firefox ESR 38.4
  • Thunderbird 38.4


Security researcher Ronald Crane reported three vulnerabilities affecting released code that were found through code inspection. These included a buffer overflow in the ANGLE graphics library and two issues of missing status checks in SVG rendering and during cryptographic key manipulation. These do not all have clear mechanisms to be exploited through web content but are vulnerable if a mechanism can be found to trigger them.

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.