Security researcher Tyson Smith and Jesse Schwartzentruber of the BlackBerry Security Automated Analysis Team used the Address Sanitizer tool while fuzzing to discover an out-of-bounds read during polygon rendering in MathML. This can allow web content to potentially read protected memory addresses. In combination with previous techniques used for SVG timing attacks, this could allow for text values to be read across domains, leading to information disclosure. In general this flaw cannot be exploited through email in the Thunderbird and Seamonkey products because scripting is disabled, but is potentially a risk in browser or browser-like contexts. External Reference: http://www.mozilla.org/security/announce/2014/mfsa2014-26.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Tyson Smith and Jesse Schwartzentruber as the original reporter.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2014:0310 https://rhn.redhat.com/errata/RHSA-2014-0310.html
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2014:0316 https://rhn.redhat.com/errata/RHSA-2014-0316.html