Bug 922424 (CVE-2012-6537) - CVE-2012-6537 Kernel: xfrm_user information leaks copy_to_user_
Summary: CVE-2012-6537 Kernel: xfrm_user information leaks copy_to_user_
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2012-6537
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: Engineering922426 Engineering922427 Engineering922428 Engineering922429
Blocks: Embargoed858947
TreeView+ depends on / blocked
 
Reported: 2013-03-16 19:42 UTC by Prasad Pandit
Modified: 2021-02-17 07:54 UTC (History)
25 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-04-23 21:24:07 UTC

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:0744 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2013-04-23 22:25:40 UTC
Red Hat Product Errata RHSA-2013:0747 0 normal SHIPPED_LIVE Moderate: kernel security and bug fix update 2013-04-16 23:03:57 UTC

Description Prasad Pandit 2013-03-16 19:42:18 UTC 
Linux kernel built with XFRM framework support is vulnerable to a memory
leakage flaw. It occurs while in routines - copy_to_user_state,
copy_to_user_policy and copy_to_user_tmpl.

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

Upstream fix:
-------------
 -> https://git.kernel.org/linus/1f86840f897717f86d523a13e99a447e6a5d2fa5
 -> https://git.kernel.org/linus/7b789836f434c87168eab067cfbed1ec4783dffd
 -> https://git.kernel.org/linus/f778a636713a435d3a922c60b1622a91136560c1

Reference:
----------
 -> http://www.openwall.com/lists/oss-security/2013/03/14/21
Comment 1 Prasad Pandit 2013-03-16 19:45:44 UTC 
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise MRG 2.

This issue did affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
Comment 3 errata-xmlrpc 2013-04-16 19:07:56 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:0747 https://rhn.redhat.com/errata/RHSA-2013-0747.html
Comment 4 errata-xmlrpc 2013-04-23 18:32:56 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0744 https://rhn.redhat.com/errata/RHSA-2013-0744.html
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