Bug 1039845 (CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271)

Summary:	CVE-2013-7271 Kernel: net: information leak in recvmsg handler msg_name & msg_namelen logic
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	agordeev, aquini, bhu, dhoward, esammons, fhrbata, fwestpha, gansalmon, iboverma, itamar, jbenc, jforbes, jkacur, jkurik, jonathan, jross, jwboyer, kernel-maint, kernel-mgr, lgoncalv, lwang, madhu.chinakonda, mcressma, nobody, pholasek, plougher, pmatouse, ppandit, 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:	2015-08-24 07:02:44 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:	1039866, 1039867, 1039868, 1039869, 1039870, 1039871, 1039872, 1039874
Bug Blocks:	1036073

Description Prasad Pandit 2013-12-10 07:25:50 UTC

Linux kernel built with the networking support(CONFIG_NET) is vulnerable to an
information leakage flaw in the socket layer. It could occur while doing
recvmsg(2), recvfrom(2) socket calls. It occurs due to improperly
initialised msg_name & msg_namelen message header parameters.

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

Upstream fix:
-------------
 -> https://git.kernel.org/linus/f3d3342602f8bcbf37d7c46641cb9bca7618eb1c

Original 'CVE-2013-6463' assigned to this issue has been rejected and the following 6 have been assigned for the same:

   - CVE-2013-7266 (drivers/isdn/mISDN/socket.c),
   - CVE-2013-7267 (net/appletalk/ddp.c),
   - CVE-2013-7268 (net/ipx/af_ipx.c),
   - CVE-2013-7269 (net/netrom/af_netrom.c),
   - CVE-2013-7270 (net/packet/af_packet.c),
   - CVE-2013-7271 (net/x25/af_x25.c)

==
Name: CVE-2013-6463

** REJECT **

DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2013-7266,
CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270,
CVE-2013-7271. Reason: This candidate is a duplicate of
CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269,
CVE-2013-7270, and CVE-2013-7271. Notes: All CVE users should
reference CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269,
CVE-2013-7270, and/or CVE-2013-7271 instead of this candidate. All
references and descriptions in this candidate have been removed to
prevent accidental usage.
===

Comment 1 Prasad Pandit 2013-12-10 07:32:28 UTC

Statement CVE-2013-7266:

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.


Statement CVE-2013-7267:

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.

Statement CVE-2013-7268:

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.

Statement CVE-2013-7269:

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.

Statement CVE-2013-7270:

This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5.

Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and
maintenance life cycle. This has been rated as having Low security
impact and is not currently planned to be addressed in future updates. For
additional information, refer to the Red Hat Enterprise Linux Life
Cycle: https://access.redhat.com/support/policy/updates/errata/.

Statement CVE-2013-7271:

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 2013-12-10 07:34:24 UTC

Acknowledgement:

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

Comment 5 Prasad Pandit 2013-12-10 08:48:39 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1039874]

Comment 11 Fedora Update System 2013-12-21 02:14:41 UTC

kernel-3.12.5-200.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 12 Fedora Update System 2013-12-21 02:24:31 UTC

kernel-3.12.5-302.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 Vincent Danen 2014-07-29 13:51:39 UTC

This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0328 https://rhn.redhat.com/errata/RHSA-2014-0328.html