Red Hat Errata System 5.3 2011-03-22T12:42:30 Red Hat Enterprise Linux 4 Mozilla Thunderbird is a standalone mail and newsgroup client. Several flaws were found in the way Thunderbird processes certain malformed Javascript code. A malicious web page could cause the execution of Javascript code in such a way that could cause Thunderbird to crash or execute arbitrary code as the user running Thunderbird. JavaScript support is disabled by default in Thunderbird; this issue is not exploitable without enabling JavaScript. (CVE-2006-6498, CVE-2006-6501, CVE-2006-6502, CVE-2006-6503, CVE-2006-6504) Several flaws were found in the way Thunderbird renders web pages. A malicious web page could cause the browser to crash or possibly execute arbitrary code as the user running Thunderbird. (CVE-2006-6497) A heap based buffer overflow flaw was found in the way Thunderbird parses the Content-Type mail header. A malicious mail message could cause the Thunderbird client to crash or possibly execute arbitrary code as the user running Thunderbird. (CVE-2006-6505) Users of Thunderbird are advised to apply this update, which contains Thunderbird version 1.5.0.9 that corrects these issues. Critical Copyright 2006 Red Hat, Inc. CVE-2006-6497 CVE-2006-6498 CVE-2006-6501 CVE-2006-6502 CVE-2006-6503 CVE-2006-6504 CVE-2006-6505 CVE-2006-6497 Multiple Thunderbird issues (CVE-2006-6498, CVE-2006-6501, CVE-2006-6502, CVE-2006-6503, CVE-2006-6504, CVE-2006-6505) cpe:/o:redhat:enterprise_linux