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Bug 1415199 - (CVE-2016-10155) CVE-2016-10155 Qemu: watchdog: memory leakage in virtual hardware watchdog wdt_i6300esb
CVE-2016-10155 Qemu: watchdog: memory leakage in virtual hardware watchdog wd...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20161222,reported=2...
: Security
Depends On: 1415200 1476049 1476068 1476069 1476072 1476074 1476077
Blocks: 1382469 1476084
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Reported: 2017-01-20 09:30 EST by Prasad J Pandit
Modified: 2018-07-18 11:12 EDT (History)
37 users (show)

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2392 normal SHIPPED_LIVE Important: qemu-kvm-rhev security, bug fix, and enhancement update 2017-08-01 16:04:36 EDT
Red Hat Product Errata RHSA-2017:2408 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security and bug fix update 2017-08-01 21:17:55 EDT

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Description Prasad J Pandit 2017-01-20 09:30:50 EST 
Quick Emulator(Qemu) built with the virtual hardware watchdog 'wdt_i6300esb'
support is vulnerable to a memory leakage issue. It could occur while doing
a device unplug operation; Doing so repeatedly would result in leaking host
memory, affecting other services on the host.

A privileged user inside guest could use this flaw to cause a DoS and/or
potentially crash the Qemu process on the host.

Upstream patch:
---------------
  -> https://lists.nongnu.org/archive/html/qemu-devel/2016-12/msg03104.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/01/21/4
Comment 1 Prasad J Pandit 2017-01-20 09:31:29 EST 
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 2 Prasad J Pandit 2017-01-20 09:32:33 EST 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1415200]
Comment 3 Cole Robinson 2017-03-14 15:27:12 EDT 
commit eb7a20a3616085d46aa6b4b4224e15587ec67e6e
Author: Li Qiang <liqiang6-s@360.cn>
Date:   Mon Nov 28 17:49:04 2016 -0800

    watchdog: 6300esb: add exit function
Comment 6 errata-xmlrpc 2017-08-01 20:59:11 EDT 
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 7 errata-xmlrpc 2017-08-02 00:48:02 EDT 
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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