Debian DSA-4804-1 : xen - security update

high Nessus Plugin ID 143500

Synopsis

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

Description

Multiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, privilege escalation or information leaks.

Solution

Upgrade the xen packages.

For the stable distribution (buster), these problems have been fixed in version 4.11.4+57-g41a822c392-1.

See Also

https://security-tracker.debian.org/tracker/source-package/xen

https://packages.debian.org/source/buster/xen

https://www.debian.org/security/2020/dsa-4804

Plugin Details

Severity: High

ID: 143500

File Name: debian_DSA-4804.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/7/2020

Updated: 5/12/2022

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

CVSS Score Source: CVE-2020-27672

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:xen, cpe:/o:debian:debian_linux:10.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/4/2020

Vulnerability Publication Date: 10/22/2020

Reference Information

CVE: CVE-2020-27670, CVE-2020-27671, CVE-2020-27672, CVE-2020-27674, CVE-2020-28368

DSA: 4804