Detections
Analytics

CBL Mariner 2.0 Security Update: bind (CVE-2023-6516)

high Nessus Plugin ID 201700

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of bind installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-6516 advisory.

 - To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, `named` May not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured `max-cache-size` limit to be significantly exceeded. This issue affects BIND 9 versions 9.16.0 through 9.16.45 and 9.16.8-S1 through 9.16.45-S1. (CVE-2023-6516)

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

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2023-6516

Plugin Details

Severity: High

ID: 201700

File Name: mariner_CVE-2023-6516.nasl

Version: 1.2

Type: local

Published: 7/3/2024

Updated: 7/26/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2023-6516

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:microsoft:cbl-mariner:bind-license, p-cpe:/a:microsoft:cbl-mariner:bind-dlz-filesystem, p-cpe:/a:microsoft:cbl-mariner:bind-pkcs11-utils, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:bind-dnssec-doc, p-cpe:/a:microsoft:cbl-mariner:bind-utils, p-cpe:/a:microsoft:cbl-mariner:bind-dlz-mysql, p-cpe:/a:microsoft:cbl-mariner:bind-dlz-sqlite3, p-cpe:/a:microsoft:cbl-mariner:bind-pkcs11-libs, p-cpe:/a:microsoft:cbl-mariner:bind-pkcs11, p-cpe:/a:microsoft:cbl-mariner:bind-pkcs11-devel, p-cpe:/a:microsoft:cbl-mariner:bind-libs, p-cpe:/a:microsoft:cbl-mariner:bind-chroot, p-cpe:/a:microsoft:cbl-mariner:bind, p-cpe:/a:microsoft:cbl-mariner:bind-devel, p-cpe:/a:microsoft:cbl-mariner:bind-dnssec-utils, p-cpe:/a:microsoft:cbl-mariner:bind-dlz-ldap, p-cpe:/a:microsoft:cbl-mariner:bind-debuginfo, p-cpe:/a:microsoft:cbl-mariner:python3-bind

Required KB Items: Host/local_checks_enabled, Host/CBLMariner/release, Host/CBLMariner/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/1/2024

Vulnerability Publication Date: 2/13/2024

Reference Information

CVE: CVE-2023-6516

IAVA: 2024-A-0103-S