Bug 968484 (CVE-2013-2128)

Summary:	CVE-2013-2128 Kernel: net: oops from tcp_collapse() when using splice(2)
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
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, jonathan, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, 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:	2014-06-09 12:41:57 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:	863512, 968871
Bug Blocks:	968402

Description Prasad Pandit 2013-05-29 19:04:29 UTC

Linux kernel which supports splice(2) call to move data across file/socket
descriptors via a pipe buffers, is vulnerable to a kernel crash that occurs
while calling splice(2) over a tcp socket which in turn calls tcp_read_sock().

A user/program could use this flaw to cause system crash, resulting in DoS.

Upstream fix:
-------------
  -> https://git.kernel.org/linus/baff42ab1494528907bf4d5870359e31711746ae

Comment 1 Prasad Pandit 2013-05-30 05:44:37 UTC

Statement:

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

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6 may address this issue.

Comment 4 errata-xmlrpc 2013-07-16 17:30:29 UTC

This issue has been addressed in following products:

  OpenStack 3 for RHEL 6

Via RHSA-2013:1080 https://rhn.redhat.com/errata/RHSA-2013-1080.html

Comment 5 errata-xmlrpc 2013-07-16 18:36:22 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1051 https://rhn.redhat.com/errata/RHSA-2013-1051.html