Bug 842518 - (CVE-2012-4049) CVE-2012-4049 wireshark: Excessive CPU usage in NFS dissector
CVE-2012-4049 wireshark: Excessive CPU usage in NFS dissector
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 842531
Blocks: 842520
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Reported: 2012-07-24 01:38 EDT by Huzaifa S. Sidhpurwala
Modified: 2014-04-23 16:48 EDT (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2014-04-23 16:48:42 EDT
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Description Huzaifa S. Sidhpurwala 2012-07-24 01:38:52 EDT
An infinite loop was found in the way NFS dissector of the Wireshark network traffic analyzer processed certain NFS packets. If Wireshark read a malformed packet off a network or opened a malicious packet capture file, it could lead to denial of service (Wireshark hang).

Comment 1 Huzaifa S. Sidhpurwala 2012-07-26 00:42:35 EDT
Though there is no news from upstream about the wrong bug mentioned in their advisory, looking at the commit logs suggests that the issue is actually:

Comment 2 Huzaifa S. Sidhpurwala 2012-07-26 00:43:49 EDT

Not Vulnerable. This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5 and 6.
Comment 3 Huzaifa S. Sidhpurwala 2012-07-26 00:45:20 EDT
Created wireshark tracking bugs for this issue

Affects: fedora-all [bug 842531]

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