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Debian DLA-653-1 : qemu-kvm security update
critical Nessus Plugin ID 93970
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Synopsis
The remote Debian host is missing a security update.Description
Multiple vulnerabilities have been found in qemu-kvm :CVE-2016-7161
Heap-based buffer overflow in the .receive callback of xlnx.xps-ethernetlite in qemu-kvm allows attackers to execute arbitrary code on the QEMU host via a large ethlite packet.
CVE-2016-7170
The vmsvga_fifo_run function in hw/display/vmware_vga.c in qemu-kvm is vulnerable to an OOB memory access.
CVE-2016-7908
The mcf_fec_do_tx function in hw/net/mcf_fec.c in qemu-kvm does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
For Debian 7 'Wheezy', these problems have been fixed in version 1.1.2+dfsg-6+deb7u16.
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/2016/10/msg00009.html
Plugin Details
Severity: Critical
ID: 93970
File Name: debian_DLA-653.nasl
Version: 2.5
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 10/12/2016
Updated: 1/11/2021
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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, p-cpe:/a:debian:debian_linux:qemu-kvm-dbg, 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: 10/11/2016