The following updates has been released for Debian 7 LTS:

[DLA 539-1] qemu-kvm security update
[DLA 540-1] qemu security update
[DLA 541-1] libvirt security update

[DLA 539-1] qemu-kvm security update

Package : qemu-kvm
Version : 1.1.2+dfsg-6+deb7u13
CVE ID : CVE-2016-3710 CVE-2016-3712

Several vulnerabilities were discovered in qemu-kvm, a full
virtualization solution for Linux hosts on x86 hardware with x86 guests.

CVE-2016-3710

Wei Xiao and Qinghao Tang of 360.cn Inc discovered an out-of-bounds
read and write flaw in the QEMU VGA module. A privileged guest user
could use this flaw to execute arbitrary code on the host with the
privileges of the hosting QEMU process.

CVE-2016-3712

Zuozhi Fzz of Alibaba Inc discovered potential integer overflow
or out-of-bounds read access issues in the QEMU VGA module. A
privileged guest user could use this flaw to mount a denial of
service (QEMU process crash).

For Debian 7 "Wheezy", these problems have been fixed in version
1.1.2+dfsg-6+deb7u13.

We recommend that you upgrade your qemu-kvm packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

[DLA 540-1] qemu security update

Package : qemu
Version : 1.1.2+dfsg-6a+deb7u13
CVE ID : CVE-2016-3710 CVE-2016-3712
Debian Bug : 823830

Several vulnerabilities were discovered in qemu, a fast processor
emulator.

CVE-2016-3710

Wei Xiao and Qinghao Tang of 360.cn Inc discovered an out-of-bounds
read and write flaw in the QEMU VGA module. A privileged guest user
could use this flaw to execute arbitrary code on the host with the
privileges of the hosting QEMU process.

CVE-2016-3712

Zuozhi Fzz of Alibaba Inc discovered potential integer overflow
or out-of-bounds read access issues in the QEMU VGA module. A
privileged guest user could use this flaw to mount a denial of
service (QEMU process crash).

For Debian 7 "Wheezy", these problems have been fixed in version
1.1.2+dfsg-6a+deb7u13.

We recommend that you upgrade your qemu packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

[DLA 541-1] libvirt security update

Package : libvirt
Version : 0.9.12.3-1+deb7u2
CVE ID : CVE-2016-5008

It was discovered that there was a password policy issue in libvirt, a
library for interfacing with different virtualization systems.

Setting an empty graphics password is documented as a way to disable
VNC/SPICE access, but QEMU does not always behave like that. VNC would
happily accept the empty password. We enforce the behavior by setting
password expiration to "now".

For Debian 7 "Wheezy", this issue has been fixed in libvirt version
0.9.12.3-1+deb7u2.

We recommend that you upgrade your libvirt packages.