4.3 - RHSA-2013:0125

Problem Description:

Updated wireshark packages that fix several security issues, three bugs, and add one enhancement are now available for Red Hat Enterprise Linux 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 Desktop (v. 5 client) - i386, x86_64

3. Description:

Wireshark, previously known as Ethereal, is a network protocol analyzer. It is used to capture and browse the traffic running on a computer network.

A heap-based buffer overflow flaw was found in the way Wireshark handled Endace ERF (Extensible Record Format) capture files. If Wireshark opened a specially-crafted ERF capture file, it could crash or, possibly, execute arbitrary code as the user running Wireshark. (CVE-2011-4102)

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-2011-1958, CVE-2011-1959, CVE-2011-2175, CVE-2011-2698, CVE-2012-0041, CVE-2012-0042, CVE-2012-0066, CVE-2012-0067, CVE-2012-4285, CVE-2012-4289, CVE-2012-4290, CVE-2012-4291)

The CVE-2011-1958, CVE-2011-1959, CVE-2011-2175, and CVE-2011-4102 issues were discovered by Huzaifa Sidhpurwala of the Red Hat Security Response Team.

This update also fixes the following bugs:

* When Wireshark starts with the X11 protocol being tunneled through an SSH connection, it automatically prepares its capture filter to omit the SSH packets. If the SSH connection was to a link-local IPv6 address including an interface name (for example ssh -X [ipv6addr]%eth0), Wireshark parsed this address erroneously, constructed an incorrect capture filter and refused to capture packets. The "Invalid capture filter" message was displayed. With this update, parsing of link-local IPv6 addresses is fixed and Wireshark correctly prepares a capture filter to omit SSH packets over a link-local IPv6 connection. (BZ#438473)

* Previously, Wireshark's column editing dialog malformed column names when they were selected. With this update, the dialog is fixed and no longer breaks column names. (BZ#493693)

* Previously, TShark, the console packet analyzer, did not properly analyze the exit code of Dumpcap, Wireshark's packet capturing back end. As a result, TShark returned exit code 0 when Dumpcap failed to parse its command-line arguments. In this update, TShark correctly propagates the Dumpcap exit code and returns a non-zero exit code when Dumpcap fails. (BZ#580510)

* Previously, the TShark "-s" (snapshot length) option worked only for a value greater than 68 bytes. If a lower value was specified, TShark captured just 68 bytes of incoming packets. With this update, the "-s" option is fixed and sizes lower than 68 bytes work as expected. (BZ#580513)

This update also adds the following enhancement:

* In this update, support for the "NetDump" protocol was added. (BZ#484999)

All users of Wireshark are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add this enhancement. 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/knowledge/articles/11258

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

438473 - wireshark via ssh -X on ipv6 link-local address fails to allow capture 484999 - add netdump dissector to wireshark 580510 - tshark returns exit code 0 in case of errors 580513 - tshark snaplen parameter does not work 710039 - CVE-2011-1959 wireshark: Stack-based buffer over-read from tvbuff buffer when reading snoop capture files 710109 - CVE-2011-2175 wireshark: Heap-based buffer over-read in Visual Networks dissector 710184 - CVE-2011-1958 wireshark (64bit): NULL pointer dereference by processing of a corrupted Diameter dictionary file 723215 - CVE-2011-2698 wireshark: Infinite loop in the ANSI A Interface (IS-634/IOS) dissector 750648 - CVE-2011-4102 wireshark: buffer overflow in the ERF file reader 773726 - CVE-2012-0041 wireshark: multiple file parser vulnerabilities (wnpa-sec-2012-01) 773728 - CVE-2012-0042 wireshark: NULL pointer vulnerabilities (wnpa-sec-2012-02) 783360 - CVE-2012-0066 Wireshark: Dos via large buffer allocation request 783363 - CVE-2012-0067 Wireshark: Dos due to integer overflow in IPTrace capture format parser 848541 - CVE-2012-4285 wireshark: crash due to zero division in DCP ETSI dissector (wnpa-sec-2012-13) 848561 - CVE-2012-4289 wireshark: DoS via excessive CPU consumption in AFP dissector (wnpa-sec-2012-17) 848572 - CVE-2012-4291 wireshark: DoS via excessive system resource consumption in CIP dissector (wnpa-sec-2012-20) 848578 - CVE-2012-4290 wireshark: DoS via excessive CPU consumption in CTDB dissector (wnpa-sec-2012-23)