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Rocky Linux 9 [CIQ] Security Update: glibc / glibc-all-langpacks / glibc-benchtests / etc Multiple Vulnerabilities (crlsa-2026_95618)

medium Nessus Plugin ID 377503

Synopsis

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

Description

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_95618 advisory.

 * glibc: nscd stack overflow leads to degraded DNS resolution (CVE-2026-89092)

 * glibc: glibc DNS stub resolver: Denial of Service via long search domain in configuration (CVE-2026-8674)

 * glibc: glibc: Privilege escalation and arbitrary code execution via TOCTOU race condition in dynamic loader (CVE-2026-86805)

 * glibc: glibc: Local attacker can cause denial of service and information disclosure via stack-based buffer overflow. (CVE-2026-95818)

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_95618.

See Also

https://access.redhat.com/errata/RHSA-2026:95618

https://bugzilla.redhat.com/show_bug.cgi?id=2531725

https://bugzilla.redhat.com/show_bug.cgi?id=2536382

https://bugzilla.redhat.com/show_bug.cgi?id=2538209

https://bugzilla.redhat.com/show_bug.cgi?id=2538306

https://errata.build.resf.org/RLSA-2026:95618

http://www.nessus.org/u?662928e2

http://www.nessus.org/u?83bb8052

Plugin Details

Severity: Medium

ID: 377503

File Name: ciq_rocky_linux_9_crlsa-2026_95618.nasl

Version: 1.1

Type: Local

Published: 11/7/2026

Updated: 11/7/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.76

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-95818

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

CVSS Score Source: CVE-2026-86805

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: 11/6/2026

Vulnerability Publication Date: 8/27/2026

Reference Information

CVE: CVE-2026-8674, CVE-2026-86805, CVE-2026-89092, CVE-2026-95818