Mozilla · Thunderbird Esr · CVE-2013-0801
**Name of the Vulnerable Software and Affected Versions**
Mozilla Firefox versions prior to 21.0
Firefox ESR versions prior to 17.0.6
Thunderbird versions prior to 17.0.6
Thunderbird ESR versions prior to 17.0.6
**Description**
The issue is related to multiple unspecified vulnerabilities in the browser engine, allowing remote attackers to cause a denial of service, which includes memory corruption and application crash, or possibly execute arbitrary code via unknown vectors.
**Recommendations**
For Mozilla Firefox versions prior to 21.0, update to version 21.0 or later.
For Firefox ESR versions prior to 17.0.6, update to version 17.0.6 or later.
For Thunderbird versions prior to 17.0.6, update to version 17.0.6 or later.
For Thunderbird ESR versions prior to 17.0.6, update to version 17.0.6 or later.