Mozilla community member Ms2ger discovered that some DOMSVGZoomEvent functions are used without being properly initialized, causing unitialized memory to be used when they are called. This can lead to a potentially exploitable crash.

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


External Reference:

http://www.mozilla.org/security/announce/2013/mfsa2013-47.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Ms2ger as the original reporter.