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Mozilla Foundation Security Advisory 2015-61

Type confusion in Indexed Database Manager

Announced
July 2, 2015
Reporter
Paul Bandha
Impact
High
Products
Firefox, Firefox ESR, Firefox OS, SeaMonkey
Fixed in
  • Firefox 39
  • Firefox ESR 31.8
  • Firefox ESR 38.1
  • Firefox OS 2.2
  • SeaMonkey 2.35

Description

Security researcher Paul Bandha reported a type confusion error where part of IDBDatabase is read by the Indexed Database Manager and incorrectly used as a pointer when it shouldn't be used as such. This leads to memory corruption and the possibility of an exploitable crash.

References