A denial of service flaw was found in the way MPLS dissector of Wireshark, a network traffic analyzer, performed dissection of certain MPLS packet capture files. A remote attacker could provide a specially-crafted MPLS packet / packet capture that, when processed, would lead to situation where tshark executable would enter a very large loop, when trying to process the crafted packet / packet capture file. Upstream bug report: [1] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8043 Sample packet capture: [2] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8043#c0 [3] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8043#c1 [4] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8043#c2 [5] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8043#c7 Relevant upstream patch: [6] http://anonsvn.wireshark.org/viewvc?view=revision&revision=46420 References: [7] http://www.wireshark.org/security/wnpa-sec-2013-01.html [8] http://www.openwall.com/lists/oss-security/2013/01/31/2
Created wireshark tracking bugs for this issue Affects: fedora-all [bug 906387]
Statement: Not Vulnerable. This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5 and 6.