Bug 922308 (CVE-2012-6540)

Summary:	CVE-2012-6540 Kernel: ipvs: information leak in getsockopt(IP_VS_SO_GET_TIMEOUT)
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
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, tgraf, 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 18:17:52 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:
Bug Blocks:	858947

Description Prasad Pandit 2013-03-16 07:55:19 UTC

Linux kernel built with IP virtual server support(CONFIG_IP_VS), but without
support for TCP(IP_VS_PROTO_TCP) or UDP(IP_VS_PROTO_UDP) or both protocols,
is vulnerable to an information leakage flaw. It occurs during the getsockopt
call to retrieve time out value: getsockopt(IP_VS_SO_GET_TIMEOUT).

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
-------------
 -> https://git.kernel.org/linus/2d8a041b7bfe1097af21441cb77d6af95f4f4680

Reference:
----------
 -> http://www.openwall.com/lists/oss-security/2013/03/14/21

Comment 1 Prasad Pandit 2013-03-16 08:06:28 UTC

Statement:

This issue does not affect the versions of the kernel package as shipped with
Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.

Comment 2 Prasad Pandit 2013-03-16 08:09:54 UTC

Upstream fix:
-------------
 -> https://git.kernel.org/linus/b61a602ee6730150f4d0df730d9312ac4d820ceb