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Debian DSA-3533-1 : openvswitch - security update

critical Nessus Plugin ID 90252

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Synopsis

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

Description

Kashyap Thimmaraju and Bhargava Shastry discovered a remotely triggerable buffer overflow vulnerability in openvswitch, a production quality, multilayer virtual switch implementation. Specially crafted MPLS packets could overflow the buffer reserved for MPLS labels in an OVS internal data structure. A remote attacker can take advantage of this flaw to cause a denial of service, or potentially, execution of arbitrary code.

Solution

Upgrade the openvswitch packages.

For the stable distribution (jessie), this problem has been fixed in version 2.3.0+git20140819-3+deb8u1.

See Also

https://packages.debian.org/source/jessie/openvswitch

https://www.debian.org/security/2016/dsa-3533

Plugin Details

Severity: Critical

ID: 90252

File Name: debian_DSA-3533.nasl

Version: 2.10

Type: local

Agent: unix

Published: 3/29/2016

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

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:openvswitch, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/29/2016

Reference Information

CVE: CVE-2016-2074

DSA: 3533