Debian DSA-5504-1 : bind9 - security update

high Nessus Plugin ID 181817

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 / 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5504 advisory.

Several vulnerabilities were discovered in BIND, a DNS server implementation. CVE-2023-3341 A stack exhaustion flaw was discovered in the control channel code which may result in denial of service (named daemon crash). CVE-2023-4236 Robert Story discovered that a flaw in the networking code handling DNS-over- TLS queries could cause named to terminate unexpectedly due to an assertion failure, resulting in denial of service when under high DNS-over-TLS query load conditions. For the oldstable distribution (bullseye), these problems have been fixed in version 1:9.16.44-1~deb11u1. The oldstable distribution (bullseye) is only affected by CVE-2023-3341. For the stable distribution (bookworm), these problems have been fixed in version 1:9.18.19-1~deb12u1. We recommend that you upgrade your bind9 packages. For the detailed security status of bind9 please refer to its security tracker page at: https://security- tracker.debian.org/tracker/bind9

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the bind9 packages.

For the stable distribution (bookworm), these problems have been fixed in version 1

Plugin Details

Severity: High

ID: 181817

File Name: debian_DSA-5504.nasl

Version: 1.2

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/23/2023

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-4236

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bind9utils, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:dnsutils, p-cpe:/a:debian:debian_linux:bind9-host, p-cpe:/a:debian:debian_linux:bind9-dnsutils, p-cpe:/a:debian:debian_linux:bind9, p-cpe:/a:debian:debian_linux:bind9-utils, p-cpe:/a:debian:debian_linux:bind9-libs, p-cpe:/a:debian:debian_linux:bind9-doc, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:bind9-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/22/2023

Vulnerability Publication Date: 9/20/2023

Reference Information

CVE: CVE-2023-3341, CVE-2023-4236

IAVA: 2023-A-0500-S

Detections

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