RHSA-2010:0499 - Security Advisory

Topic

Updated seamonkey packages that fix several security issues are now
available for Red Hat Enterprise Linux 3 and 4.

The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

SeaMonkey is an open source web browser, email and newsgroup client, IRC
chat client, and HTML editor.

Several flaws were found in the processing of malformed web content. A web
page containing malicious content could cause SeaMonkey to crash or,
potentially, execute arbitrary code with the privileges of the user running
SeaMonkey. (CVE-2010-1200)

A flaw was found in the way browser plug-ins interact. It was possible for
a plug-in to reference the freed memory from a different plug-in, resulting
in the execution of arbitrary code with the privileges of the user running
SeaMonkey. (CVE-2010-1198)

An integer overflow flaw was found in the processing of malformed web
content. A web page containing malicious content could cause SeaMonkey to
crash or, potentially, execute arbitrary code with the privileges of the
user running SeaMonkey. (CVE-2010-1199)

A flaw was found in the way SeaMonkey processed mail attachments. A
specially-crafted mail message could cause SeaMonkey to crash.
(CVE-2010-0163)

A flaw was found in the way SeaMonkey handled the "Content-Disposition:
attachment" HTTP header when the "Content-Type: multipart" HTTP header was
also present. A website that allows arbitrary uploads and relies on the
"Content-Disposition: attachment" HTTP header to prevent content from being
displayed inline, could be used by an attacker to serve malicious content
to users. (CVE-2010-1197)

All SeaMonkey users should upgrade to these updated packages, which correct
these issues. After installing the update, SeaMonkey must be restarted for
the changes to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian 3 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc

Fixes

• BZ - 576391 - CVE-2010-0163 seamonkey/thunderbird: crash when indexing certain messages with attachments
• BZ - 590804 - CVE-2010-1200 Mozilla Crashes with evidence of memory corruption
• BZ - 590828 - CVE-2010-1198 Mozilla Freed object reuse across plugin instances
• BZ - 590833 - CVE-2010-1199 Mozilla Integer Overflow in XSLT Node Sorting
• BZ - 590850 - CVE-2010-1197 Mozilla Content-Disposition: attachment ignored if Content-Type: multipart also present

CVEs

• CVE-2010-0163
• CVE-2010-1199
• CVE-2010-1198
• CVE-2010-1197
• CVE-2010-1200

References

• http://www.redhat.com/security/updates/classification/#critical