Bug 807611 (CVE-2012-1593)

Summary:	CVE-2012-1593 wireshark: NULL pointer dereference in ANSI A dissector
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	alekcejk, huzaifas, jsafrane, 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:	2014-04-22 20:43:29 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:	808973
Bug Blocks:

Description Jan Lieskovsky 2012-03-28 10:40:55 UTC

A NULL pointer dereference flaw was found in the way ANSI A dissector of the Wireshark, a network traffic analyzer, processed certain capture files (those causing wireshark to pass NULL packet information via a global variable to the call_dissector() routine). A remote attacker could provide a specially-crafted packet capture file, which once opened by a local unsuspecting user would lead to wireshark executable crash.

Upstream bug report:
[1] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6823

Relevant upstream patch:
[2] http://anonsvn.wireshark.org/viewvc?view=revision&revision=40962

CVE Request:
[3] http://www.openwall.com/lists/oss-security/2012/03/28/7

Reproducer:
[4] http://www.wireshark.org/download/automated/captures/fuzz-2012-02-10-23234.pcap

Comment 3 Kurt Seifried 2012-03-28 15:08:38 UTC

Added CVE as per http://www.openwall.com/lists/oss-security/2012/03/28/13

Comment 4 Huzaifa S. Sidhpurwala 2012-03-30 07:56:01 UTC

Statement:

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

Comment 5 Huzaifa S. Sidhpurwala 2012-04-02 04:25:15 UTC

Created wireshark tracking bugs for this issue

Affects: fedora-16 [bug 808973]

Comment 6 Fedora Update System 2012-04-19 05:22:49 UTC

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.