Debian DSA-4857-1 : bind9 - security update

high Nessus Plugin ID 146603

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Synopsis

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

Description

A buffer overflow vulnerability was discovered in the SPNEGO implementation affecting the GSSAPI security policy negotiation in BIND, a DNS server implementation, which could result in denial of service (daemon crash), or potentially the execution of arbitrary code.

Solution

Upgrade the bind9 packages.

For the stable distribution (buster), this problem has been fixed in version 1:9.11.5.P4+dfsg-5.1+deb10u3.

Plugin Details

Severity: High

ID: 146603

File Name: debian_DSA-4857.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 2/19/2021

Updated: 3/2/2021

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: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2020-8625

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/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: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:bind9

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/18/2021

Vulnerability Publication Date: 2/17/2021

Reference Information

CVE: CVE-2020-8625

DSA: 4857

Detections

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