Bug 1074471 (CVE-2014-2309)

Summary:	CVE-2014-2309 Kernel: net: IPv6: crash due to router advertisement flooding
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	agordeev, anton, aquini, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jkurik, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, matt, mchehab, mcressma, npajkovs, pholasek, plougher, rt-maint, rvrbovsk, williams
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:	2014-04-28 17:19:10 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:	1075060, 1075062, 1075063, 1075064
Bug Blocks:	1071403

Description Prasad Pandit 2014-03-10 10:24:56 UTC

Linux kernel built with the IPv6 protocol support(CONFIG_IPv6) is vulnerable
to a kernel crash caused by a flood of IPv6 router advertisement(RA) packets.
It occurs while processing the IPv6 router advertisement packets.

A remote attacker in the same layer 2 segment can use this flaw to crash the
kernel on a target system, resulting in DoS.

Upstream fix:
-------------
  -> https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=c88507fbad8055297c1d1e21e599f46960cbee39

Introduced in patch:
--------------------
  -> https://git.kernel.org/linus/957c665f37007de93ccbe45902a23143724170d0

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2014/03/07/6

Comment 1 Prasad Pandit 2014-03-11 12:09:58 UTC

Statement:

This issue does not affect the versions of Linux kernel as shipped with
Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.

Comment 4 Prasad Pandit 2014-03-11 12:16:26 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1075064]

Comment 6 Fedora Update System 2014-03-28 03:16:09 UTC

kernel-3.13.7-200.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2014-03-28 03:18:07 UTC

kernel-3.13.7-100.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 8 errata-xmlrpc 2014-04-28 16:56:22 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:0439 https://rhn.redhat.com/errata/RHSA-2014-0439.html