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AlmaLinux 9 : bind9.18 (ALSA-2025:21111)

high Nessus Plugin ID 277308

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Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2025:21111 advisory.

 * bind: Cache poisoning attacks with unsolicited RRs (CVE-2025-40778)
 * bind: Cache poisoning due to weak PRNG (CVE-2025-40780)
 * bind: Resource exhaustion via malformed DNSKEY handling (CVE-2025-8677)

Tenable has extracted the preceding description block directly from the AlmaLinux 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

Update the affected packages.

See Also

https://errata.almalinux.org/9/ALSA-2025-21111.html

https://access.redhat.com/errata/RHSA-2025:21111

Plugin Details

Severity: High

ID: 277308

File Name: alma_linux_ALSA-2025-21111.nasl

Version: 1.1

Type: local

Published: 12/3/2025

Updated: 12/3/2025

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.1

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-2025-8677

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

CVSS Score Source: CVE-2025-40780

Vulnerability Information

CPE: cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:bind9.18-devel, p-cpe:/a:alma:linux:bind9.18-doc, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::sap, p-cpe:/a:alma:linux:bind9.18, p-cpe:/a:alma:linux:bind9.18-dnssec-utils, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::highavailability, p-cpe:/a:alma:linux:bind9.18-libs, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::sap_hana, p-cpe:/a:alma:linux:bind9.18-chroot, p-cpe:/a:alma:linux:bind9.18-utils, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::crb

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/12/2025

Vulnerability Publication Date: 10/22/2025

Reference Information

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

CWE: 338, 347, 400

RHSA: 2025:21111