Rocky Linux 8 [CIQ] Security Update: perl-YAML Multiple Vulnerabilities (crlsa-2026_93471)

critical Nessus Plugin ID 376408

Synopsis

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

Description

The Rocky Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CIQ crlsa-2026_93471 advisory.

* perl-yaml: perl-yaml: Arbitrary code execution via unrestricted package variable assignment (CVE-2019-25777)

* perl-yaml: perl-yaml: Arbitrary destructor method execution via crafted YAML document (CVE-2017-20285)

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 perl-YAML package based on the guidance in CIQ advisory crlsa-2026_93471.

See Also

https://access.redhat.com/errata/RHSA-2026:93471

https://bugzilla.redhat.com/show_bug.cgi?id=2545818

https://bugzilla.redhat.com/show_bug.cgi?id=2545820

https://errata.build.resf.org/RLSA-2026:93471

http://www.nessus.org/u?c633e48c

http://www.nessus.org/u?e6b70110

Plugin Details

Severity: Critical

ID: 376408

File Name: ciq_rocky_linux_8_crlsa-2026_93471.nasl

Version: 1.1

Type: Local

Published: 11/5/2026

Updated: 11/5/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.55

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2017-20285

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

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: 11/3/2026

Vulnerability Publication Date: 10/5/2026

Reference Information

CVE: CVE-2017-20285, CVE-2019-25777