Security researcher Paul Stone of Context Information Security discovered that timing differences in the processing of SVG format images with filters could allow for pixel values to be read. This could potentially allow for text values to be read across domains, leading to information disclosure. In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products. External Reference: http://www.mozilla.org/security/announce/2013/mfsa2013-55.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Paul Stone as the original reporter.
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 5 Via RHSA-2013:0982 https://rhn.redhat.com/errata/RHSA-2013-0982.html
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2013:0981 https://rhn.redhat.com/errata/RHSA-2013-0981.html