Bug 881805 (CVE-2012-5596, CVE-2012-6057)

Summary:	CVE-2012-5596 CVE-2012-6057 wireshark: DoS (infinite loop) in the EIGRP dissector (wnpa-sec-2012-34)
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	huzaifas, jrusnack, jsafrane, mapcode.mind, phatina, rvokal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-11-29 22:04:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	881865

Description Jan Lieskovsky 2012-11-29 15:41:20 UTC

A denial of service flaw was found in the way EIGRP dissector of Wireshark, a network traffic analyzer, performed dissection of certain EIGRP packets. A remote attacker could provide a specially-crafted EIGRP packet / packet capture that, when processed, would lead to excessive CPU consumption or into situation where tshark executable would enter an infinite loop, when trying to process the crafted packet / packet capture file.

Upstream bug report:
[1] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7800

References:
[2] http://www.wireshark.org/security/wnpa-sec-2012-34.html
[3] http://www.wireshark.org/docs/relnotes/wireshark-1.8.4.html

Relevant upstream patch:
[4] http://anonsvn.wireshark.org/viewvc?view=revision&revision=45408

Reproducer:
[5] http://www.wireshark.org/download/automated/captures/fuzz-2012-10-05-27090.pcap

Comment 1 Jan Lieskovsky 2012-11-29 15:51:06 UTC

This issue did NOT affect the versions of the wireshark package, as shipped with Red Hat Enterprise Linux 5 and 6.

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This issue did NOT affect the versions of the wireshark package, as shipped with Fedora release of 16 and 17.

Comment 2 Vincent Danen 2012-11-29 22:02:32 UTC

This was assigned CVE-2012-5596:

http://www.openwall.com/lists/oss-security/2012/11/29/5

Comment 3 Vincent Danen 2012-11-29 22:04:03 UTC

Statement CVE-2012-6057:

Not vulnerable. This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 5 and 6.

Comment 4 Jan Lieskovsky 2012-12-05 13:43:23 UTC

The CVE-2012-5596 identifier has been rejected by Mitre in favour of CVE-2012-6057 one:

Name: CVE-2012-5596

** REJECT **

DO NOT USE THIS CANDIDATE NUMBER.  ConsultIDs: CVE-2012-6057.  Reason:
This candidate is a reservation duplicate of CVE-2012-6057.  Notes:
All CVE users should reference CVE-2012-6057 instead of this
candidate.  All references and descriptions in this candidate have
been removed to prevent accidental usage.

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The correct CVE identifier this particular wireshark flaw should be referenced under (from now on) is CVE-2012-6057.