Security researcher Abhishek Arya (Inferno) of the Google Chrome Security Team discovered a number of use-after-free and out of bounds read issues using the Address Sanitizer tool. These issues are potentially exploitable, allowing for remote code execution.

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

The following issues were fixed in Firefox 30 and did not affect Firefox ESR 24:

* out of bounds read in PropertyProvider::FindJustificationRange (CVE-2014-1536)
* Heap-use-after-free in mozilla::dom::workers::WorkerPrivateParent (CVE-2014-1537)



External Reference:

http://www.mozilla.org/security/announce/2014/mfsa2014-49.html


Acknowledgements:

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

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5 and 6