RHSA-2011:0370

Problem Description:

Updated wireshark packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 4 and 5.

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.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

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

A heap-based buffer overflow flaw was found in Wireshark. If Wireshark
opened a specially-crafted capture file, it could crash or, possibly,
execute arbitrary code as the user running Wireshark. (CVE-2011-0024)

Several denial of service flaws were 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, CVE-2011-0538, CVE-2011-1139,
CVE-2011-1140, CVE-2011-1141, CVE-2011-1143)

Users of Wireshark should upgrade to these updated packages, which contain
backported patches to correct these issues. All running instances of
Wireshark must be restarted for the update to take effect.

4. 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
https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

639486 - CVE-2010-3445 wireshark: stack overflow in BER dissector
671331 - CVE-2011-0024 heap-based buffer overflow in wireshark < 1.2 when reading malformed capture files
676232 - CVE-2011-0538 Wireshark: memory corruption when reading a malformed pcap file (upstream bug #5652)
681748 - CVE-2011-1139 Wireshark: Denial Of Service (application crash) via a pcap-ng file that contains a large packet-length field
681754 - CVE-2011-1140 Wireshark: Multiple stack consumption vulnerabilities caused DoS via crafted SMB or CLDAP packet
681756 - CVE-2011-1141 Wireshark: Malformed LDAP filter string causes Denial of Service via excessive memory consumption
681760 - CVE-2011-1143 Wireshark: Null pointer dereference causing application crash when reading malformed pcap file