Bug 957705 (CVE-2013-2017)

Summary:	CVE-2013-2017 kernel: veth: double-free flaw in case of congestion
Product:	[Other] Security Response	Reporter:	Petr Matousek <pmatouse>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	agordeev, anton, bhu, davej, dhoward, esammons, fhrbata, gansalmon, iboverma, itamar, jforbes, jkacur, jlieskov, jonathan, jrusnack, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, lzheng, madhu.chinakonda, mcressma, npajkovs, 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:	2013-06-10 22:01:27 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:	957712, 957713
Bug Blocks:	957720

Description Petr Matousek 2013-04-29 10:35:56 UTC

A flaw was found in the way Virtual Ethernet driver implementation in the Linux kernel handled skbs in case of congestion.

A remote attacker could potentially use this flaw to crash the system.

Introduced in:
2.6.33-rc1

Fixed in:
2.6.34

Upstream fix:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ec82562ffc6f297d0de36d65776cff8e5704867

References:
http://marc.info/?l=linux-netdev&m=127310770900442&w=3

Acknowledgements:

Red Hat would like to thank Atzm WATANABE of Stratosphere Inc. for reporting this issue.

Comment 1 Petr Matousek 2013-04-29 11:00:22 UTC

Statement:

This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

Comment 6 errata-xmlrpc 2013-06-10 21:53:44 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0911 https://rhn.redhat.com/errata/RHSA-2013-0911.html