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Bug 1140325 - (CVE-2014-3631) CVE-2014-3631 kernel: keys: incorrect termination condition in assoc array garbage collection
CVE-2014-3631 kernel: keys: incorrect termination condition in assoc array ga...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20140909,repor...
: Security
: 1154979 (view as bug list)
Depends On: 1116347 1139431 1155136
Blocks: 829181
  Show dependency tree / graph
 
Reported: 2014-09-10 12:59 EDT by Petr Matousek
Modified: 2018-02-13 09:29 EST (History)
29 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A flaw was found in the way the Linux kernel's keys subsystem handled the termination condition in the associative array garbage collection functionality. A local, unprivileged user could use this flaw to crash the system.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2018-02-01 11:58:26 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Upstream patch proposal (4.21 KB, text/plain)
2014-09-10 13:02 EDT, Petr Matousek 		no flags Details
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:1971 normal SHIPPED_LIVE Important: kernel security and bug fix update 2014-12-09 20:33:29 EST

  None (edit)
Description Petr Matousek 2014-09-10 12:59:19 EDT 
A flaw was found in the way the termination condition in the associative array
garbage collection functionality was handled when used from the keys subsystem.

A local unprivileged user could use this flaw to crash the system.

Introduced by:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b2a4df200d570b2c33a57e1ebfa5896e4bc81b69
Comment 1 Petr Matousek 2014-09-10 13:02:15 EDT 
Created attachment 936266 [details]
Upstream patch proposal
Comment 2 Petr Matousek 2014-09-10 13:03:31 EDT 
Statement:

This issue does not affect versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 7 may address this issue.
Comment 4 David Howells 2014-09-10 17:32:01 EDT 
The patch has been posted upstream: https://lkml.org/lkml/2014/9/10/788
Comment 7 Petr Matousek 2014-10-21 08:46:31 EDT 
*** Bug 1154979 has been marked as a duplicate of this bug. ***
Comment 8 Petr Matousek 2014-10-29 05:18:23 EDT 
Acknowledgements:

Red Hat would like to thank Frey Alfredsson for reporting this issue.
Comment 9 Martin Prpič 2014-12-05 09:30:37 EST 
IssueDescription:

A flaw was found in the way the Linux kernel's keys subsystem handled the termination condition in the associative array garbage collection functionality. A local, unprivileged user could use this flaw to crash the system.
Comment 10 errata-xmlrpc 2014-12-09 15:35:03 EST 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:1971 https://rhn.redhat.com/errata/RHSA-2014-1971.html
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