| Description: | Summary:
The remote host is missing an update for the Debian 'qemu-kvm' package(s) announced via the DLA-574-1 advisory.
Vulnerability Insight:
Multiple vulnerabilities have been discovered in qemu-kvm, a full virtualization solution on x86 hardware. The Common Vulnerabilities and Exposures project identifies the following problems:
CVE-2015-5239
Lian Yihan discovered that QEMU incorrectly handled certain payload messages in the VNC display driver. A malicious guest could use this issue to cause the QEMU process to hang, resulting in a denial of service.
CVE-2016-2857
Ling Liu discovered that QEMU incorrectly handled IP checksum routines. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly leak host memory bytes.
CVE-2016-4020
Donghai Zdh discovered that QEMU incorrectly handled the Task Priority Register(TPR). A privileged attacker inside the guest could use this issue to possibly leak host memory bytes.
CVE-2016-4439 / CVE-2016-6351 Li Qiang disovered that the emulation of the 53C9X Fast SCSI Controller is affected by out of bound access issues.
CVE-2016-5403
Zhenhao Hong discovered that a malicious guest administrator can cause unbounded memory allocation in QEMU (which can cause an Out-of-Memory condition) by submitting virtio requests without bothering to wait for completion.
For Debian 7 Wheezy, these problems have been fixed in version 1.1.2+dfsg-6+deb7u14.
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: [link moved to references]
Affected Software/OS:
'qemu-kvm' package(s) on Debian 7.
Solution:
Please install the updated package(s).
CVSS Score:
7.2
CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C
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