Use-after-free in HTML5 string parser

2016-03-08T00:00:00
ID MFSA2016-23
Type mozilla
Reporter Mozilla Foundation
Modified 2016-03-08T00:00:00

Description

Security researcher ca0nguyen, working with HP's Zero Day Initiative, reported a use-after-free issue in the HTML5 string parser when parsing a particular set of table-related tags in a foreign fragment context such as SVG. This results in a potentially exploitable crash.

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