Debian DSA-3349-1 : qemu-kvm - security update

medium Nessus Plugin ID 85755
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Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities were discovered in qemu-kvm, a full virtualization solution on x86 hardware.

- CVE-2015-5165 Donghai Zhu discovered that the QEMU model of the RTL8139 network card did not sufficiently validate inputs in the C+ mode offload emulation, allowing a malicious guest to read uninitialized memory from the QEMU process's heap.

- CVE-2015-5745 A buffer overflow vulnerability was discovered in the way QEMU handles the virtio-serial device. A malicious guest could use this flaw to mount a denial of service (QEMU process crash).

Solution

Upgrade the qemu-kvm packages.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.1.2+dfsg-6+deb7u9.

See Also

https://security-tracker.debian.org/tracker/CVE-2015-5165

https://security-tracker.debian.org/tracker/CVE-2015-5745

https://packages.debian.org/source/wheezy/qemu-kvm

https://www.debian.org/security/2015/dsa-3349

Plugin Details

Severity: Medium

ID: 85755

File Name: debian_DSA-3349.nasl

Version: 2.8

Type: local

Agent: unix

Published: 9/3/2015

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: 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: 9/2/2015

Vulnerability Publication Date: 8/12/2015

Reference Information

CVE: CVE-2015-5165, CVE-2015-5745

DSA: 3349