Bug 1401494 (CVE-2016-9794) - CVE-2016-9794 kernel: ALSA: Use-after-free in kill_fasync
Summary: CVE-2016-9794 kernel: ALSA: Use-after-free in kill_fasync
Status: NEW
Alias: CVE-2016-9794
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20160414,repor...
Keywords: Security
Depends On: 1288993 1404235
Blocks: 1401496
TreeView+ depends on / blocked
 
Reported: 2016-12-05 12:37 UTC by Andrej Nemec
Modified: 2019-02-28 22:31 UTC (History)
31 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
A use-after-free vulnerability was found in ALSA pcm layer, which allows local users to cause a denial of service, memory corruption, or possibly other unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


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Description Andrej Nemec 2016-12-05 12:37:26 UTC
A use-after-free vulnerability was found in ALSA pcm layer, which allows local users to cause a denial of service, memory corruption or possibly other unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

References:

https://patchwork.kernel.org/patch/8752621/

Upstream patch:

https://github.com/torvalds/linux/commit/3aa02cb664c5fb1042958c8d1aa8c35055a2ebc4

CVE-ID request+assign:

http://seclists.org/oss-sec/2016/q4/575

Comment 3 Vladis Dronov 2016-12-13 12:57:53 UTC
Statement:

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG-2 as the flaw was already fixed in the products listed.


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