Bug 906335 (CVE-2013-1578)

Summary:	CVE-2013-1578 wireshark: MPLS payload starting with valid-looking ethernet address dissected twice (wnpa-sec-2013-01, bug 8043)
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, 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:	2013-02-04 05:20:29 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:	906387
Bug Blocks:	906403

Description Jan Lieskovsky 2013-01-31 13:35:48 UTC

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

Comment 1 Jan Lieskovsky 2013-01-31 14:55:32 UTC

Created wireshark tracking bugs for this issue

Affects: fedora-all [bug 906387]

Comment 2 Huzaifa S. Sidhpurwala 2013-02-04 05:20:29 UTC

Statement:

Not Vulnerable. This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5 and 6.