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Mozilla Foundation Security Advisory 2014-49

Use-after-free and out of bounds issues found using Address Sanitizer

June 10, 2014
Abhishek Arya
Firefox, Firefox ESR, SeaMonkey, Thunderbird
Fixed in
  • Firefox 30
  • Firefox ESR 24.6
  • SeaMonkey 2.26.1
  • Thunderbird 24.6


Security researcher Abhishek Arya (Inferno) of the Google Chrome Security Team discovered a number of use-after-free and out of bounds read issues using the Address Sanitizer tool. These issues are potentially exploitable, allowing for remote code execution.

In general this flaw cannot be exploited through email in the Thunderbird and Seamonky products because scripting is disabled, but is potentially a risk in browser or browser-like contexts.


The following issues were fixed in Firefox 30 and did not affect Firefox ESR 24:

The following issue was fixed in both Firefox 30 and ESR 24.6: