Bug 1039046 (CVE-2013-6432)

Summary:	CVE-2013-6432 Kernel: ping: NULL pointer dereference on write to msg_name
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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, mcressma, 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:	2014-06-10 11:55:35 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:	1036074

Description Prasad Pandit 2013-12-06 13:07:45 UTC

Linux kernel built with the TCP/IP networking support(CONFIG_NET) is vulnerable
to a NULL pointer dereference flaw. It could occur via a plain read(2) call on
a ping socket. Usage of ping sockets is generally restricted to privileged
users.

A user/program able to read from ping sockets could use this flaw to crash a
system resulting in DoS.

Upstream fix:
-------------
 -> https://git.kernel.org/linus/cf970c002d270c36202bd5b9c2804d3097a52da0

Comment 1 Prasad Pandit 2013-12-06 14:08:09 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 2013-12-06 14:14:51 UTC

Acknowledgement:

Red Hat would like to thank Mr Hannes Frederic Sowa for reporting this issue.