Bug 911937 - (CVE-2013-0871) CVE-2013-0871 kernel: race condition with PTRACE_SETREGS
CVE-2013-0871 kernel: race condition with PTRACE_SETREGS
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
: ---
: ---
Assigned To: Red Hat Product Security
impact=important,public=20130215,repo...
: Security
Depends On: 911942 912071 912072 912073 912074 912075 912077 913074 913075 913076 916531
Blocks: 911941 915776
  Show dependency treegraph
 
Reported: 2013-02-16 15:35 EST by Petr Matousek
Modified: 2015-07-31 02:58 EDT (History)
50 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2013-04-16 15:21:12 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)

  None (edit)
Description Petr Matousek 2013-02-16 15:35:31 EST
A race conditon in ptrace can lead to kernel stack corruption and arbitrary kernel-mode code execution. A local unprivileged user could use this flaw to elevate his privileges.

References:
http://seclists.org/oss-sec/2013/q1/326

Upstream fixes:
910ffdb18a6408e14febbb6e4b6840fd2c928c82
9899d11f654474d2d54ea52ceaa2a1f4db3abd68
9067ac85d533651b98c2ff903182a20cbb361fcb
Comment 1 Petr Matousek 2013-02-16 15:48:10 EST
Created kernel tracking bugs for this issue

Affects: fedora-all [bug 911942]
Comment 5 Petr Matousek 2013-02-17 12:29:32 EST
Statement:

This issue did affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. Future updates may address this issue.

Please note that while a public non-weaponized exploit exists, according to our testing the issue is very hard to hit.
Comment 15 errata-xmlrpc 2013-02-26 14:41:15 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:0567 https://rhn.redhat.com/errata/RHSA-2013-0567.html
Comment 17 bugreports2005 2013-03-11 03:55:30 EDT
Is this issue going to be addressed in Red Hat Enterprise Linux 5, or is Comment 5 wrong about it being affected?
Comment 18 errata-xmlrpc 2013-03-11 14:40:19 EDT
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:0622 https://rhn.redhat.com/errata/RHSA-2013-0622.html
Comment 19 errata-xmlrpc 2013-03-11 15:39:22 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2013:0621 https://rhn.redhat.com/errata/RHSA-2013-0621.html
Comment 20 Petr Matousek 2013-03-11 16:29:10 EDT
Hello,

(In reply to comment #17)
> Is this issue going to be addressed in Red Hat Enterprise Linux 5, or is
> Comment 5 wrong about it being affected?

today we released RHSA-2013:0621 (https://rhn.redhat.com/errata/RHSA-2013-0621.html) that fixes this issue in Red Hat Enterprise Linux 5.

Best regards,
--
Petr Matousek / Red Hat Security Response Team
Comment 21 errata-xmlrpc 2013-03-19 14:24:44 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6.3 EUS - Server Only

Via RHSA-2013:0662 https://rhn.redhat.com/errata/RHSA-2013-0662.html
Comment 22 errata-xmlrpc 2013-03-19 14:25:16 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6.1 EUS - Server Only

Via RHSA-2013:0661 https://rhn.redhat.com/errata/RHSA-2013-0661.html
Comment 23 errata-xmlrpc 2013-04-02 15:56:43 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5.6 EUS - Server Only

Via RHSA-2013:0695 https://rhn.redhat.com/errata/RHSA-2013-0695.html
Comment 24 errata-xmlrpc 2013-04-16 14:34:10 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6.2 EUS - Server Only

Via RHSA-2013:0741 https://rhn.redhat.com/errata/RHSA-2013-0741.html

Note You need to log in before you can comment on or make changes to this bug.