Detections
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Amazon Linux 2023 : bind, bind-chroot, bind-devel (ALAS2023-2025-1255)

high Nessus Plugin ID 274499

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1255 advisory.

 Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1. (CVE-2025-40778)

 In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use.This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
 (CVE-2025-40780)

 Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1. (CVE-2025-8677)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update bind --releasever 2023.9.20251105' or or 'dnf update --advisory ALAS2023-2025-1255 --releasever 2023.9.20251105' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2025-1255.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2025-40778.html

https://explore.alas.aws.amazon.com/CVE-2025-40780.html

https://explore.alas.aws.amazon.com/CVE-2025-8677.html

Plugin Details

Severity: High

ID: 274499

File Name: al2023_ALAS2023-2025-1255.nasl

Version: 1.1

Type: local

Agent: unix

Published: 11/7/2025

Updated: 11/7/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.9

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2025-40780

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:bind-chroot, p-cpe:/a:amazon:linux:bind-license, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:bind, p-cpe:/a:amazon:linux:bind-utils, p-cpe:/a:amazon:linux:bind-debuginfo, p-cpe:/a:amazon:linux:bind-doc, p-cpe:/a:amazon:linux:bind-dnssec-utils-debuginfo, p-cpe:/a:amazon:linux:bind-devel, p-cpe:/a:amazon:linux:bind-dnssec-utils, p-cpe:/a:amazon:linux:bind-libs, p-cpe:/a:amazon:linux:bind-debugsource, p-cpe:/a:amazon:linux:bind-libs-debuginfo, p-cpe:/a:amazon:linux:bind-utils-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/5/2025

Vulnerability Publication Date: 10/22/2025

Reference Information

CVE: CVE-2025-40778, CVE-2025-40780, CVE-2025-8677

IAVA: 2025-A-0800