Security researcher Aki Helin from OUSPG used the Address Sanitizer tool to discover a crash during the decoding of WAV format audio files in some instances. This crash is not exploitable but could be used for a denial of service (DOS) attack by malicious parties. 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/mfsa2013-67.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Aki Helin 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