Bug 956162 - (CVE-2013-3076) CVE-2013-3076 Kernel: crypto: algif - suppress sending source address information in recvmsg
CVE-2013-3076 Kernel: crypto: algif - suppress sending source address informa...
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=20130407,reported=2...
: Security
Depends On: 956166 956167 956168
Blocks: 858947
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Reported: 2013-04-24 07:27 EDT by Prasad J Pandit
Modified: 2015-07-31 03:05 EDT (History)
24 users (show)

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Doc Type: Bug Fix
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Last Closed: 2014-06-09 13:44:16 EDT
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Description Prasad J Pandit 2013-04-24 07:27:07 EDT
Linux kernel built with the User-space interface for hash algorithms
(CONFIG_CRYPTO_USER_API_HASH) and User-space interface for symmetric key
cipher algorithms (CONFIG_CRYPTO_USER_API_SKCIPHER) support is vulnerable
to an information leakage flaw. It occurs while receiving messages via
recvmsg(2) call.

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

Upstream fix:
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 -> http://git.kernel.org/linus/72a763d805a48ac8c0bf48fdb510e84c12de51fe

Reference:
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 -> http://www.openwall.com/lists/oss-security/2013/04/14/3
Comment 1 Prasad J Pandit 2013-04-24 07:33:06 EDT
Statement:

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

This issue affects the version of the kernel package as shipped with
Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise MRG 2
may address this issue.
Comment 3 Prasad J Pandit 2013-04-24 07:36:58 EDT
Created kernel tracking bugs for this issue

Affects: fedora-all [bug 956168]
Comment 4 Fedora Update System 2013-04-26 20:07:47 EDT
kernel-3.8.8-203.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2013-05-03 20:08:19 EDT
kernel-3.8.11-100.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 errata-xmlrpc 2013-05-20 12:59:03 EDT
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:0829 https://rhn.redhat.com/errata/RHSA-2013-0829.html

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