Bug 1113406 (CVE-2014-4652) - CVE-2014-4652 Kernel: ALSA: control: protect user controls against races & memory disclosure
Summary: CVE-2014-4652 Kernel: ALSA: control: protect user controls against races & me...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2014-4652
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: 1117336 1117337 1117338 1117339 1117340
Blocks: 1112943
TreeView+ depends on / blocked
 
Reported: 2014-06-26 07:01 UTC by Prasad Pandit
Modified: 2021-02-17 06:26 UTC (History)
29 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
An information leak flaw was found in the way the Linux kernel's Advanced Linux Sound Architecture (ALSA) implementation handled access of the user control's state. A local, privileged user could use this flaw to leak kernel memory to user space.
Clone Of:
Environment:
Last Closed: 2015-07-22 19:27:40 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:1083 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2014-08-20 14:51:31 UTC
Red Hat Product Errata RHSA-2014:1971 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2014-12-10 01:33:29 UTC
Red Hat Product Errata RHSA-2015:1272 0 normal SHIPPED_LIVE Moderate: kernel security, bug fix, and enhancement update 2015-07-22 11:56:25 UTC

Description Prasad Pandit 2014-06-26 07:01:12 UTC 
Linux kernel built with the Advanced Linux Sound Architecture(ALSA) sound
system support(CONFIG_SND) is vulnerable to an information leakage flaw. It
could occur when two applications try to access control state simultaneously.

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

Upstream fix:
-------------
  -> https://git.kernel.org/linus/07f4d9d74a04aa7c72c5dae0ef97565f28f17b92

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2014/06/26/6
Comment 1 Prasad Pandit 2014-07-08 13:29:12 UTC 
Statement:

(none)
Comment 5 Martin Prpič 2014-08-18 11:18:12 UTC 
IssueDescription:

An information leak flaw was found in the way the Linux kernel's Advanced Linux Sound Architecture (ALSA) implementation handled access of the user control's state. A local, privileged user could use this flaw to leak kernel memory to user space.
Comment 6 errata-xmlrpc 2014-08-20 10:51:45 UTC 
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:1083 https://rhn.redhat.com/errata/RHSA-2014-1083.html
Comment 7 errata-xmlrpc 2014-12-09 20:34:17 UTC 
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
Comment 8 errata-xmlrpc 2015-07-22 08:09:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2015:1272 https://rhn.redhat.com/errata/RHSA-2015-1272.html
Note You need to log in before you can comment on or make changes to this bug.