Mozilla

Mozilla Foundation Security Advisory 2013-53

Execution of unmapped memory through onreadystatechange event

Announced
June 25, 2013
Reporter
Nils
Impact
Critical
Products
Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR
Fixed in
  • Firefox 22
  • Firefox ESR 17.0.7
  • SeaMonkey 2.19
  • Thunderbird 17.0.7
  • Thunderbird ESR 17.0.7

Description

Security researcher Nils reported that specially crafted web content using the onreadystatechange event and reloading of pages could sometimes cause a crash when unmapped memory is executed. This crash is potentially exploitable.

In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products.

References