Rocky Linux 8 [CIQ] Security Update: gnutls / gnutls-c++ / gnutls-c++-debuginfo / gnutls-dane / etc Multiple Vulnerabilities (crlsa-2021_4451)

critical Nessus Plugin ID 357679

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-2021_4451 advisory.

* nettle: Remote crash in RSA decryption via manipulated ciphertext (CVE-2021-3580)

* gnutls: Use after free in client key_share extension (CVE-2021-20231)

* gnutls: Use after free in client_send_params in lib/ext/pre_shared_key.c (CVE-2021-20232)

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-2021_4451.

See Also

https://access.redhat.com/errata/RHSA-2021:4451

https://bugzilla.redhat.com/show_bug.cgi?id=1776250

https://bugzilla.redhat.com/show_bug.cgi?id=1908110

https://bugzilla.redhat.com/show_bug.cgi?id=1908334

https://bugzilla.redhat.com/show_bug.cgi?id=1922275

https://bugzilla.redhat.com/show_bug.cgi?id=1922276

https://bugzilla.redhat.com/show_bug.cgi?id=1965445

https://bugzilla.redhat.com/show_bug.cgi?id=1967983

https://errata.build.resf.org/RLSA-2021:4451

http://www.nessus.org/u?215a975a

http://www.nessus.org/u?22ec5b06

Plugin Details

Severity: Critical

ID: 357679

File Name: ciq_rocky_linux_8_crlsa-2021_4451.nasl

Version: 1.1

Type: Local

Published: 10/1/2026

Updated: 10/1/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-20232

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/9/2021

Vulnerability Publication Date: 3/12/2021

Reference Information

CVE: CVE-2021-20231, CVE-2021-20232, CVE-2021-3580