Bug 1039845 - (CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271) CVE-2013-7271 Kernel: net: information leak in recvmsg handler msg_name & msg_namelen logic
CVE-2013-7271 Kernel: net: information leak in recvmsg handler msg_name & msg...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20131121,reported=2...
: Security
Depends On: 1039866 1039867 1039868 1039869 1039870 1039871 1039872 1039874
Blocks: 1036073
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Reported: 2013-12-10 02:25 EST by Prasad J Pandit
Modified: 2015-10-15 14:08 EDT (History)
31 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2015-08-24 03:02:44 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Prasad J Pandit 2013-12-10 02:25:50 EST
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 J Pandit 2013-12-10 02:32:28 EST
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 J Pandit 2013-12-10 02:34:24 EST
Acknowledgement:

Red Hat would like to thank Hannes Frederic Sowa for reporting this issue.
Comment 5 Prasad J Pandit 2013-12-10 03:48:39 EST
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1039874]
Comment 11 Fedora Update System 2013-12-20 21:14:41 EST
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 2013-12-20 21:24:31 EST
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 09:51:39 EDT
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

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