Rocky Linux 8 [CIQ] Security Update: mutt / mutt-debuginfo / mutt-debugsource Multiple Vulnerabilities (crlsa-2021_4181)

medium Nessus Plugin ID 358181

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_4181 advisory.

* mutt: Incorrect handling of invalid initial IMAP responses could lead to an authentication attempt over unencrypted connection (CVE-2020-28896)

* mutt: Memory leak when parsing rfc822 group addresses (CVE-2021-3181)

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_4181.

See Also

https://access.redhat.com/errata/RHSA-2021:4181

https://bugzilla.redhat.com/show_bug.cgi?id=1890084

https://bugzilla.redhat.com/show_bug.cgi?id=1900826

https://bugzilla.redhat.com/show_bug.cgi?id=1912614

https://bugzilla.redhat.com/show_bug.cgi?id=1920446

https://errata.build.resf.org/RLSA-2021:4181

http://www.nessus.org/u?c2588492

http://www.nessus.org/u?d07a1035

Plugin Details

Severity: Medium

ID: 358181

File Name: ciq_rocky_linux_8_crlsa-2021_4181.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: 23.18

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2020-28896

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/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: 11/9/2021

Vulnerability Publication Date: 11/23/2020

Reference Information

CVE: CVE-2020-28896, CVE-2021-3181