Debian dla-3816 : bind9 - security update

high Nessus Plugin ID 197488

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Synopsis

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

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3816 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3816-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Santiago Ruano Rincn May 17, 2024 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : bind9 Version : 1:9.11.5.P4+dfsg-5.1+deb10u11 CVE ID : CVE-2023-50387 CVE-2023-50868 Debian Bug :

Two vulnerabilities were discovered in BIND, a DNS server implementation, which may result in denial of service.

CVE-2023-50387

Certain DNSSEC aspects of the DNS protocol allow remote attackers to cause a denial of service via DNSSEC queries. This is known as the KeyTrap issue.

CVE-2023-50868

The Closest Encloser Proof aspect of the DNS protocol allows remote attackers to cause a denial of service via DNSSEC queries in a random subdomain attack. This is known as the NSEC3 issue.

For Debian 10 buster, these problems have been fixed in version 1:9.11.5.P4+dfsg-5.1+deb10u11.

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

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

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.

Plugin Details

Severity: High

ID: 197488

File Name: debian_DLA-3816.nasl

Version: 1.2

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 5/17/2024

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2023-50387

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:libbind9-161, p-cpe:/a:debian:debian_linux:libisccfg-export163, p-cpe:/a:debian:debian_linux:bind9-doc, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:libbind-dev, p-cpe:/a:debian:debian_linux:libbind-export-dev, p-cpe:/a:debian:debian_linux:libisccc-export161, p-cpe:/a:debian:debian_linux:dnsutils, p-cpe:/a:debian:debian_linux:bind9-host, p-cpe:/a:debian:debian_linux:libdns1104, p-cpe:/a:debian:debian_linux:libirs-export161, p-cpe:/a:debian:debian_linux:libisccc161, p-cpe:/a:debian:debian_linux:libisccfg163, p-cpe:/a:debian:debian_linux:bind9utils, p-cpe:/a:debian:debian_linux:liblwres161, p-cpe:/a:debian:debian_linux:libisc1100, p-cpe:/a:debian:debian_linux:libdns-export1104, p-cpe:/a:debian:debian_linux:libisc-export1100, p-cpe:/a:debian:debian_linux:libirs161, 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: 5/17/2024

Vulnerability Publication Date: 2/13/2024

Reference Information

CVE: CVE-2023-50387, CVE-2023-50868

IAVA: 2024-A-0103-S

Detections

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