Using the Address Sanitizer tool, security researcher Atte Kettunen found a buffer overflow during the rendering of SVG format graphics when combined with specific CSS properties on a page. 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.


External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-48.html


Acknowledgements:

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