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Mozilla Foundation Security Advisory 2015-47

Buffer overflow parsing H.264 video with Linux Gstreamer

Announced
May 12, 2015
Reporter
Aki Helin
Impact
High
Products
Firefox, Firefox ESR, SeaMonkey, Thunderbird
Fixed in
  • Firefox 38
  • Firefox ESR 31.7
  • SeaMonkey 2.35
  • Thunderbird 31.7
  • Thunderbird 38.0.1

Description

Security researcher Aki Helin used the Address Sanitizer tool to find a buffer overflow during video playback on Linux systems. This was due to a problem in older versions of the Gstreamer plugin during the parsing of H.264 formatted video. This issue could be used to induce a possibly exploitable crash.

This issue does not affect the current 1.0 version of Gstreamer and does not affect Windows or OS X systems.

References