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Bug 1421626 - (CVE-2017-5973) CVE-2017-5973 Qemu: usb: infinite loop while doing control transfer in xhci_kick_epctx
CVE-2017-5973 Qemu: usb: infinite loop while doing control transfer in xhci_k...
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=20170213,reported=2...
: Security
Depends On: 1421627 1476049 1476068 1476069 1476072 1476074 1476077
Blocks: 1419462 1476084
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Reported: 2017-02-13 04:50 EST by Prasad J Pandit
Modified: 2018-07-18 11:14 EDT (History)
36 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 2017-02-13 04:50:54 EST 
Quick emulator(Qemu) built with the USB xHCI controller emulator support is
vulnerable to an infinite loop issue. It could occur while processing control
transfer descriptors' sequence in xhci_kick_epctx.

A privileged user inside guest could use this flaw to crash the Qemu process
resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg01101.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/02/13/11
Comment 1 Prasad J Pandit 2017-02-13 04:51:28 EST 
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 2 Prasad J Pandit 2017-02-13 04:52:30 EST 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1421627]
Comment 5 errata-xmlrpc 2017-08-01 20:59:47 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 6 errata-xmlrpc 2017-08-02 00:49:06 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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