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Mozilla Foundation Security Advisory 2012-81

GetProperty function can bypass security checks

Announced
October 9, 2012
Reporter
Alice White
Impact
Critical
Products
Firefox, Firefox ESR, SeaMonkey, Thunderbird, Thunderbird ESR
Fixed in
  • Firefox 16
  • Firefox ESR 10.0.8
  • SeaMonkey 2.13
  • Thunderbird 16
  • Thunderbird ESR 10.0.8

Description

Mozilla community member Alice White reported that when the GetProperty function is invoked through JSAPI, security checking can be bypassed when getting cross-origin properties. This potentially allowed for arbitrary code execution.

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