Bug 876197 (CVE-2012-5521)

Summary:	CVE-2012-5521 quagga (ospf6d): Assertion failure when removing routes (retrieving information which route to remove)
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	balajig81, md, ovasik
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:	2015-08-22 15:04:00 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:	876210
Bug Blocks:	876213

Description Jan Lieskovsky 2012-11-13 14:35:39 UTC

A denial of service flaw was found in the way Quagga's ospf6d daemon performed routes removal. In certain circumstances when removing the route the ospf6d daemon terminated with assertion failure when trying to determine / find, which route to remove. An OSPF6 router could use this flaw to cause ospf6d on an adjacent router to abort.

References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=693102

Upstream bug report:
[2] https://bugzilla.quagga.net/show_bug.cgi?id=747

Comment 1 Jan Lieskovsky 2012-11-13 15:08:37 UTC

This issue affects the versions of the quagga package, as shipped with Red Hat Enterprise Linux 5 and 6.

--

This issue affects the versions of the quagga package, as shipped with Fedora release of 16 and 17. Please schedule an update (once there is final upstream patch for this issue available).

Comment 2 Jan Lieskovsky 2012-11-13 15:09:17 UTC

CVE Request:
[3] http://www.openwall.com/lists/oss-security/2012/11/13/7

Comment 3 Jan Lieskovsky 2012-11-13 15:10:25 UTC

Created quagga tracking bugs for this issue

Affects: fedora-all [bug 876210]

Comment 4 Kurt Seifried 2012-11-13 18:28:54 UTC

Added CVE as per http://www.openwall.com/lists/oss-security/2012/11/13/14

Comment 7 Vincent Danen 2015-08-22 15:03:45 UTC

Statement:

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.