Bug 1416157 (CVE-2017-5579) - CVE-2017-5579 Qemu: serial: host memory leakage 16550A UART emulation
Summary: CVE-2017-5579 Qemu: serial: host memory leakage 16550A UART emulation
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-5579
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: 1416161 1416162 1476049 1476068 1476069 1476072 1476074 1476077
Blocks: 1382469 1476084
TreeView+ depends on / blocked
 
Reported: 2017-01-24 17:50 UTC by Prasad Pandit
Modified: 2021-02-17 02:43 UTC (History)
36 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2019-06-08 03:06:20 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 2017-01-24 17:50:12 UTC 
Quick Emulator(Qemu) built with the 16550A UART serial device emulation 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/2017-01/msg01945.html
Comment 1 Prasad Pandit 2017-01-24 17:50:46 UTC 
Acknowledgments:

Name: Li Qiang (360.cn Inc.)
Comment 2 Prasad Pandit 2017-01-24 17:56:07 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1416162]
Comment 3 Prasad Pandit 2017-01-24 17:56:30 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1416161]
Comment 5 errata-xmlrpc 2017-08-02 00:59:31 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 6 errata-xmlrpc 2017-08-02 04:48:22 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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