RHSA-2010:0924 - Security Advisory

Topic

Updated wireshark packages that fix two security issues are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
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

Wireshark is a program for monitoring network traffic. Wireshark was
previously known as Ethereal.

A heap-based buffer overflow flaw was found in the Wireshark Local Download
Sharing Service (LDSS) dissector. If Wireshark read a malformed packet off
a network or opened a malicious dump file, it could crash or, possibly,
execute arbitrary code as the user running Wireshark. (CVE-2010-4300)

A denial of service flaw was found in Wireshark. Wireshark could crash or
stop responding if it read a malformed packet off a network, or opened a
malicious dump file. (CVE-2010-3445)

Users of Wireshark should upgrade to these updated packages, which contain
Wireshark version 1.2.13, and resolve these issues. All running instances
of Wireshark must be restarted for the update 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 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 639486 - CVE-2010-3445 wireshark: stack overflow in BER dissector
• BZ - 656456 - CVE-2010-4300 Wireshark: Heap-based buffer overflow in LDSS dissector

CVEs

• CVE-2010-3445
• CVE-2010-4300

References

• http://www.redhat.com/security/updates/classification/#moderate
• http://www.wireshark.org/security/wnpa-sec-2010-13.html
• http://www.wireshark.org/security/wnpa-sec-2010-12.html