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Updated wireshark packages that fix multiple security issues, several bugs, and add various enhancements 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 associated with each description below.
Wireshark, previously known as Ethereal, is a network protocol analyzer. It is used to capture and browse the traffic running on a computer network.
- CVE-2013-3559, CVE-2013-4083
- Two flaws were found in Wireshark. 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-2012-2392, CVE-2012-3825, CVE-2012-4285, CVE-2012-4288, CVE-2012-4289, CVE-2012-4290, CVE-2012-4291, CVE-2012-4292, CVE-2012-5595, CVE-2012-5597, CVE-2012-5598, CVE-2012-5599, CVE-2012-5600, CVE-2012-6056, CVE-2012-6059, CVE-2012-6060, CVE-2012-6061, CVE-2012-6062, CVE-2013-3557, CVE-2013-3561, CVE-2013-4081, CVE-2013-4927, CVE-2013-4931, CVE-2013-4932, CVE-2013-4933, CVE-2013-4934, CVE-2013-4935, CVE-2013-4936, CVE-2013-5721
- 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.
The wireshark packages have been upgraded to upstream version 1.8.10, which provides a number of bug fixes and enhancements over the previous versions. For more information on the bugs fixed, enhancements included, and supported protocols introduced, refer to the Wireshark Release Notes:
- Previously, Wireshark did not parse the RECLAIM-COMPLETE opcode when inspecting traffic generated by NFSv4.1. A patch has been provided to enable the parsing of the RECLAIM_COMPLETE opcode, and Wireshark is now able to properly dissect and handle NFSv4.1 traffic.
- Prior to this update, frame arrival times in a text file were reported one hour ahead from the timestamps in the packet capture file. This resulted in various failures being reported by the dfilter-test.py test suite. To fix this bug, frame arrival timestamps have been shifted by one hour, thus fixing this bug.
- The "tshark -D" command returned output to STDERR instead of STDOUT, which could break scripts that are parsing the "tshark -D" output. This bug has been fixed, and the "tshark -D" command now writes output data to a correct standard stream.
- Due to an array overrun, Wireshark could experience undefined program behavior or could unexpectedly terminate. With this update, proper array handling ensures Wireshark no longer crashes in the described scenario.
- Previously, the dftest and randpkt command line utilities lacked manual pages. This update adds proper manual pages for both utilities.
All Wireshark users are advised to upgrade to these updated packages, which contain backported patches to correct these issues and add these enhancements. All running instances of Wireshark must be restarted for the update to take effect.