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Debian DLA-765-1 : qemu-kvm security update
medium Nessus Plugin ID 96100
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Synopsis
The remote Debian host is missing a security update.Description
Multiple vulnerabilities have been found in qemu-kvm :CVE-2016-9911
qemu-kvm built with the USB EHCI Emulation support is vulnerable to a memory leakage issue. It could occur while processing packet data in 'ehci_init_transfer'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.
CVE-2016-9921, CVE-2016-9922
qemu-kvm built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.
For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u19.
We recommend that you upgrade your qemu-kvm packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected kvm, qemu-kvm, and qemu-kvm-dbg packages.See Also
https://lists.debian.org/debian-lts-announce/2016/12/msg00041.html
Plugin Details
Severity: Medium
ID: 96100
File Name: debian_DLA-765.nasl
Version: 3.7
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 12/27/2016
Updated: 1/11/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Low
Base Score: 2.1
Temporal Score: 1.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:kvm, p-cpe:/a:debian:debian_linux:qemu-kvm-dbg, p-cpe:/a:debian:debian_linux:qemu-kvm, cpe:/o:debian:debian_linux:7.0
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 12/26/2016