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Debian DLA-3498-1 : bind9 - LTS security update

high Nessus Plugin ID 178479

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Synopsis

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

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3498 advisory.

 - Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size` statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit. It has been discovered that the effectiveness of the cache-cleaning algorithm used in `named` can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured `max-cache-size` limit to be significantly exceeded. This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
 (CVE-2023-2828)

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

Solution

Upgrade the bind9 packages.

For Debian 10 Buster, this problem has been fixed in version 1

See Also

https://security-tracker.debian.org/tracker/CVE-2023-2828

https://packages.debian.org/source/buster/bind9

https://www.debian.org/lts/security/2023/dla-3498

Plugin Details

Severity: High

ID: 178479

File Name: debian_DLA-3498.nasl

Version: 1.1

Type: local

Agent: unix

Published: 7/19/2023

Updated: 9/21/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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-2023-2828

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:bind9, p-cpe:/a:debian:debian_linux:bind9-doc, p-cpe:/a:debian:debian_linux:bind9-host, p-cpe:/a:debian:debian_linux:bind9utils, p-cpe:/a:debian:debian_linux:dnsutils, p-cpe:/a:debian:debian_linux:libbind-dev, p-cpe:/a:debian:debian_linux:libbind-export-dev, p-cpe:/a:debian:debian_linux:libbind9-161, p-cpe:/a:debian:debian_linux:libdns-export1104, p-cpe:/a:debian:debian_linux:libdns1104, p-cpe:/a:debian:debian_linux:libirs-export161, p-cpe:/a:debian:debian_linux:libirs161, p-cpe:/a:debian:debian_linux:libisc-export1100, p-cpe:/a:debian:debian_linux:libisc1100, p-cpe:/a:debian:debian_linux:libisccc-export161, p-cpe:/a:debian:debian_linux:libisccc161, p-cpe:/a:debian:debian_linux:libisccfg-export163, p-cpe:/a:debian:debian_linux:libisccfg163, p-cpe:/a:debian:debian_linux:liblwres161, 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: 7/19/2023

Vulnerability Publication Date: 6/21/2023

Reference Information

CVE: CVE-2023-2828

IAVA: 2023-A-0320-S