Bug 842518 (CVE-2012-4049) - CVE-2012-4049 wireshark: Excessive CPU usage in NFS dissector
Summary: CVE-2012-4049 wireshark: Excessive CPU usage in NFS dissector
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-4049
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 842531
Blocks: 842520
TreeView+ depends on / blocked
 
Reported: 2012-07-24 05:38 UTC by Huzaifa S. Sidhpurwala
Modified: 2021-02-23 14:14 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-04-23 20:48:42 UTC
Embargoed:

Attachments (Terms of Use)

Description Huzaifa S. Sidhpurwala 2012-07-24 05:38:52 UTC 
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).

Reference:
http://www.wireshark.org/security/wnpa-sec-2012-12.html
Comment 1 Huzaifa S. Sidhpurwala 2012-07-26 04:42:35 UTC 
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:

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7209
Comment 2 Huzaifa S. Sidhpurwala 2012-07-26 04:43:49 UTC 
Statement:

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 04:45:20 UTC 
Created wireshark tracking bugs for this issue

Affects: fedora-all [bug 842531]
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