Bug 1066342 (CVE-2013-4151) - CVE-2013-4151 qemu: virtio: out-of-bounds buffer write on invalid state load
Summary: CVE-2013-4151 qemu: virtio: out-of-bounds buffer write on invalid state load
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-4151
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1095692 1095693 1095694 1095695 1096089 1102579 1102580 1110194 1110284 1110288 1133850
Blocks: 1036654 1110626 1133827
TreeView+ depends on / blocked
 
Reported: 2014-02-18 09:27 UTC by Petr Matousek
Modified: 2023-05-12 23:25 UTC (History)
45 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-09-22 11:23:29 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:0674 0 normal SHIPPED_LIVE Moderate: rhev-hypervisor6 3.4.0 security, bug fix, and enhancement update 2014-06-09 18:35:12 UTC
Red Hat Product Errata RHSA-2014:0743 0 normal SHIPPED_LIVE Moderate: qemu-kvm security and bug fix update 2014-06-11 00:14:13 UTC
Red Hat Product Errata RHSA-2014:0744 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security update 2014-06-11 00:14:07 UTC
Red Hat Product Errata RHSA-2014:0888 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security update 2014-07-24 19:38:25 UTC
Red Hat Product Errata RHSA-2014:0927 0 normal SHIPPED_LIVE Moderate: qemu-kvm security and bug fix update 2014-07-23 20:15:13 UTC
Red Hat Product Errata RHSA-2014:1268 0 normal SHIPPED_LIVE Moderate: qemu-kvm-rhev security update 2014-09-22 08:00:39 UTC

Description Petr Matousek 2014-02-18 09:27:01 UTC 
Michael S. Tsirkin writes:

QEMU 1.0 out-of-bounds buffer write in virtio_load@virtio/virtio.c

So we have this code since way back when:

    num = qemu_get_be32(f);

    for (i = 0; i < num; i++) {
        vdev->vq[i].vring.num = qemu_get_be32(f);

array of vqs has size VIRTIO_PCI_QUEUE_MAX, so
on invalid input this will write beyond end of buffer.

An user able to alter the savevm data (either on the disk or over the wire
during migration) could use this flaw to to corrupt QEMU process memory on
the (destination) host, which could potentially result in arbitrary code
execution on the host with the privileges of the QEMU process.

Upstream fix:
-------------
  -> http://git.qemu.org/?p=qemu.git;a=commit;h=cc45995294b92d95319b4782750a3580cabdbc0c
Comment 1 Petr Matousek 2014-02-18 11:09:20 UTC 
Statement:

This issue does affect the versions of kvm package as shipped with
Red Hat Enterprise Linux 5.

This issue does affect the versions of qemu-kvm package as shipped with
Red Hat Enterprise Linux 7.
Comment 4 Prasad Pandit 2014-05-08 12:12:16 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1095693]
Comment 6 Fedora Update System 2014-05-16 10:00:59 UTC 
qemu-1.6.2-5.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 errata-xmlrpc 2014-06-09 14:36:40 UTC 
This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:0674 https://rhn.redhat.com/errata/RHSA-2014-0674.html
Comment 9 Murray McAllister 2014-06-10 07:39:54 UTC 
Acknowledgements:

The issues were discovered as part of the state loading code audit performed by Michael S. Tsirkin of Red Hat, Anthony Liguori and Michael Roth.
Comment 10 errata-xmlrpc 2014-06-10 20:18:53 UTC 
This issue has been addressed in following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2014:0744 https://rhn.redhat.com/errata/RHSA-2014-0744.html
Comment 11 errata-xmlrpc 2014-06-10 20:19:43 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0743 https://rhn.redhat.com/errata/RHSA-2014-0743.html
Comment 15 errata-xmlrpc 2014-07-23 16:15:42 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:0927 https://rhn.redhat.com/errata/RHSA-2014-0927.html
Comment 17 errata-xmlrpc 2014-07-24 15:38:47 UTC 
This issue has been addressed in following products:

  OpenStack 4 for RHEL 6
  OpenStack 3 for RHEL 6

Via RHSA-2014:0888 https://rhn.redhat.com/errata/RHSA-2014-0888.html
Comment 19 errata-xmlrpc 2014-09-22 04:01:11 UTC 
This issue has been addressed in the following products:

  OpenStack 5 for RHEL 7

Via RHSA-2014:1268 https://rhn.redhat.com/errata/RHSA-2014-1268.html
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