Bug 1388052 (CVE-2016-8909) - CVE-2016-8909 Qemu: audio: intel-hda: infinite loop in processing dma buffer stream
Summary: CVE-2016-8909 Qemu: audio: intel-hda: infinite loop in processing dma buffer ...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2016-8909
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: 1388053 1476049 1476068 1476069 1476072 1476074 1476077
Blocks: 1326713
TreeView+ depends on / blocked
 
Reported: 2016-10-24 10:23 UTC by Prasad Pandit
Modified: 2021-02-17 03:08 UTC (History)
38 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2018-01-16 10:25:44 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2392 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security, bug fix, and enhancement update 2017-08-01 20:04:36 UTC
Red Hat Product Errata RHSA-2017:2408 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-08-02 01:17:55 UTC

Description Prasad Pandit 2016-10-24 10:23:46 UTC 
Quick Emulator(Qemu) built with the Intel HDA controller emulation support
is vulnerable to an infinite loop issue. It could occur while processing the
DMA buffer stream while doing data transfer in 'intel_hda_xfer'.

A privileged user inside guest could use this flaw to consume excessive CPU
cycles on the host, resulting in DoS.

Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg04717.html
Comment 1 Prasad Pandit 2016-10-24 10:24:19 UTC 
Acknowledgments:

Name: PSIRT  (Huawei Inc.)
Comment 2 Prasad Pandit 2016-10-24 10:25:27 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1388053]
Comment 3 Cole Robinson 2017-01-16 18:21:33 UTC 
commit 0c0fc2b5fd534786051889459848764edd798050
Author: Prasad J Pandit <pjp>
Date:   Thu Oct 20 13:10:24 2016 +0530

    audio: intel-hda: check stream entry count during transfer
Comment 4 errata-xmlrpc 2017-08-02 00:58:03 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)
  Red Hat OpenStack Platform 11.0 (Ocata)
  Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
  Red Hat OpenStack Platform 8.0 (Liberty)
  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2017:2408 https://access.redhat.com/errata/RHSA-2017:2408
Comment 5 errata-xmlrpc 2017-08-02 04:46:56 UTC 
This issue has been addressed in the following products:

  RHEV 4.X RHEV-H and Agents for RHEL-7

Via RHSA-2017:2392 https://access.redhat.com/errata/RHSA-2017:2392
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