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Rocky Linux 8 [CIQ] Security Update: python3-unbound / python3-unbound-debuginfo / unbound / etc Multiple Vulnerabilities (crlsa-2026_24365)

high Nessus Plugin ID 359097

Synopsis

The Rocky Linux host is missing one or more security updates.

Description

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_24365 advisory.

 * unbound: Heap overflow and crash with multiple nsid, cookie, padding EDNS options (CVE-2026-42944)

 * unbound: Unbound DNSSEC Validator Denial of Service via Incorrect Write Offset Counter in Chase-Reply Messages (CVE-2026-42959)

Tenable has extracted the preceding description block directly from the CIQ 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 based on the guidance in CIQ advisory crlsa-2026_24365.

See Also

https://access.redhat.com/errata/RHSA-2026:24365

https://bugzilla.redhat.com/show_bug.cgi?id=2479774

https://bugzilla.redhat.com/show_bug.cgi?id=2479806

https://errata.build.resf.org/RLSA-2026:24365

http://www.nessus.org/u?25642249

http://www.nessus.org/u?a0a60273

Plugin Details

Severity: High

ID: 359097

File Name: ciq_rocky_linux_8_crlsa-2026_24365.nasl

Version: 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

Vendor

Vendor Severity: Unknown

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-2026-42959

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2026

Vulnerability Publication Date: 5/20/2026

Reference Information

CVE: CVE-2026-42944, CVE-2026-42959