Bug 1289816 (CVE-2015-8567, CVE-2015-8568) - CVE-2015-8567 CVE-2015-8568 Qemu: net: vmxnet3: host memory leakage
Summary: CVE-2015-8567 CVE-2015-8568 Qemu: net: vmxnet3: host memory leakage
Status: CLOSED WONTFIX
Alias: CVE-2015-8567, CVE-2015-8568
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: impact=low,public=20151202,reported=2...
Keywords: Security
: 1272156 (view as bug list)
Depends On: 1289817 1289818
Blocks: 1272163 1288109
TreeView+ depends on / blocked
 
Reported: 2015-12-09 03:13 UTC by Prasad J Pandit
Modified: 2019-06-11 11:13 UTC (History)
41 users (show)

(edit)
A memory-leak flaw was found in the QEMU emulator built with VMWARE VMXNET3 paravirtual NIC emulator support. The flaw occurred when a guest repeatedly tried to activate the VMXNET3 device. A privileged guest attacker could use this flaw to leak host memory, resulting in denial of service on the host.
Clone Of:
(edit)
Last Closed: 2019-06-08 02:46:15 UTC


Attachments (Terms of Use)

Description Prasad J Pandit 2015-12-09 03:13:35 UTC
Qemu emulator built with a VMWARE VMXNET3 paravirtual NIC emulator support is
vulnerable to a memory leakage flaw. It occurs when a guest repeatedly tries
to activate the vmxnet3 device.

A privileged guest user could use this flaw to leak host memory, resulting
in DoS on the host.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg02299.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2015/12/15/10

Comment 1 Prasad J Pandit 2015-12-09 03:16:32 UTC
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1289817]

Comment 2 Prasad J Pandit 2015-12-09 03:16:52 UTC
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1289818]

Comment 3 Prasad J Pandit 2015-12-09 03:52:05 UTC
Statement: 

This issue does not affect the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5.

This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6, and the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7.

This issue affects the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.

This has been rated as having Low security impact and is not currently
planned to be addressed in future updates. For additional information, refer
to the Red Hat Enterprise Linux Life Cycle:
https://access.redhat.com/support/policy/updates/errata/.

Comment 4 Prasad J Pandit 2015-12-09 04:14:37 UTC
Acknowledgements:

This issue was discovered by Qinghao Tang of QIHU 360 Marvel Team.

Comment 6 Prasad J Pandit 2015-12-09 06:58:21 UTC
*** Bug 1272156 has been marked as a duplicate of this bug. ***

Comment 7 Fedora Update System 2016-01-24 03:26:16 UTC
qemu-2.4.1-6.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2016-01-28 18:25:47 UTC
xen-4.5.2-7.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 9 Fedora Update System 2016-02-01 06:30:46 UTC
xen-4.5.2-7.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 10 Fedora Update System 2016-02-02 00:52:09 UTC
qemu-2.3.1-11.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.


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