A memory allocation flaw was found in the way the MP2T dissector of Wireshark, a network traffic analyzer, processed capture files containig invalid pointer values used for packet length specification. A remote attacker could provide a specially-crafted packet capture file (causing unsigned length value to be reduced by more than its value, resulting into it being a very large value and attempt to allocate large amount of memory when reassembling the packet tvbuff to the requested length), which once opened by a local unsuspecting user would lead to wireshark executable abort.
Upstream bug report:
Relevant upstream patch:
Added CVE as per http://www.openwall.com/lists/oss-security/2012/03/28/13
This issue affects the version of wireshark as shipped with Fedora 15 and Fedora 16
Not Vulnerable. This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5 and 6.
Created wireshark tracking bugs for this issue
Affects: fedora-15 [bug 808974]
Affects: fedora-16 [bug 808973]
wireshark-1.4.12-1.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.
wireshark-1.6.6-1.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.