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Bug 1402265 - (CVE-2016-9907) CVE-2016-9907 Qemu: usb: redirector: memory leakage when destroying redirector
CVE-2016-9907 Qemu: usb: redirector: memory leakage when destroying redirector
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=20161107,reported=2...
: Security
Depends On: 1402266 1476049 1476068 1476069 1476072 1476074 1476077
Blocks: 1395985 1476084
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Reported: 2016-12-07 02:19 EST by Prasad J Pandit
Modified: 2018-07-18 11:08 EDT (History)
38 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 2016-12-07 02:19:01 EST 
Quick Emulator(Qemu) built with the USB redirector usb-guest support is
vulnerable to a memory leakage flaw. It could occur while destroying the USB
redirector in 'usbredir_handle_destroy'.

A guest user/process could use this issue to leak host memory, resulting in
DoS for a host.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg01379.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2016/12/06/3
Comment 1 Prasad J Pandit 2016-12-07 02:20:24 EST 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1402266]
Comment 3 Cole Robinson 2017-01-16 13:42:58 EST 
commit 07b026fd82d6cf11baf7d7c603c4f5f6070b35bf
Author: Li Qiang <liqiang6-s@360.cn>
Date:   Mon Nov 7 21:57:46 2016 -0800

    usbredir: free vm_change_state_handler in usbredir destroy dispatch
Comment 4 errata-xmlrpc 2017-08-01 20:58:27 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 5 errata-xmlrpc 2017-08-02 00:47:17 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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