RHSA-2006:0420 - Security Advisory

Topic

Updated Ethereal packages that fix various security vulnerabilities are now
available.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

Description

Ethereal is a program for monitoring network traffic.

Several denial of service bugs were found in Ethereal's protocol
dissectors. Ethereal could crash or stop responding if it reads a malformed
packet off the network. (CVE-2006-1932, CVE-2006-1933, CVE-2006-1937,
CVE-2006-1938, CVE-2006-1939, CVE-2006-1940)

Several buffer overflow bugs were found in Ethereal's COPS, telnet, and
ALCAP dissectors as well as Network Instruments file code and
NetXray/Windows Sniffer file code. Ethereal could crash or execute
arbitrary code if it reads a malformed packet off the network.
(CVE-2006-1934, CVE-2006-1935, CVE-2006-1936)

Users of ethereal should upgrade to these updated packages containing
version 0.99.0, which is not vulnerable to these issues.

Solution

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

This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

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 Server 2 ia64
• Red Hat Enterprise Linux Server 2 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 Workstation 2 ia64
• Red Hat Enterprise Linux Workstation 2 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 Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 189906 - CVE-2006-1932 Multiple ethereal issues (CVE-2006-1933, CVE-2006-1934, CVE-2006-1935, CVE-2006-1936, CVE-2006-1937, CVE-2006-1938, CVE-2006-1939, CVE-2006-1940)

CVEs

• CVE-2006-1939
• CVE-2006-1938
• CVE-2006-1933
• CVE-2006-1932
• CVE-2006-1937
• CVE-2006-1936
• CVE-2006-1935
• CVE-2006-1934
• CVE-2006-1940

References

• http://www.ethereal.com/appnotes/enpa-sa-00023.html
• http://www.redhat.com/security/updates/classification/#moderate