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Rocky Linux 8 [CIQ] Security Update: fwupd / fwupd-debuginfo / fwupd-debugsource Multiple Vulnerabilities (crlsa-2021_2566)

high Nessus Plugin ID 357397

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_2566 advisory.

 * grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled (CVE-2020-14372)

 * grub2: Use-after-free in rmmod command (CVE-2020-25632)

 * grub2: Out-of-bounds write in grub_usb_device_initialize() (CVE-2020-25647)

 * grub2: Stack buffer overflow in grub_parser_split_cmdline() (CVE-2020-27749)

 * grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled (CVE-2020-27779)

 * grub2: Heap out-of-bounds write in short form option parser (CVE-2021-20225)

 * grub2: Heap out-of-bounds write due to miscalculation of space required for quoting (CVE-2021-20233)

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_2566.

See Also

https://access.redhat.com/errata/RHSA-2021:2566

https://bugzilla.redhat.com/show_bug.cgi?id=1873150

https://bugzilla.redhat.com/show_bug.cgi?id=1879577

https://bugzilla.redhat.com/show_bug.cgi?id=1886936

https://bugzilla.redhat.com/show_bug.cgi?id=1899966

https://bugzilla.redhat.com/show_bug.cgi?id=1900698

https://bugzilla.redhat.com/show_bug.cgi?id=1924696

https://bugzilla.redhat.com/show_bug.cgi?id=1926263

https://errata.build.resf.org/RLSA-2021:2566

http://www.nessus.org/u?54c56a59

http://www.nessus.org/u?73e4323c

Plugin Details

Severity: High

ID: 357397

File Name: ciq_rocky_linux_8_crlsa-2021_2566.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: High

Score: 7

Percentile: 98.31

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-20233

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

Temporal Vector: CVSS:3.0/E:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/29/2021

Vulnerability Publication Date: 7/30/2020

Reference Information

CVE: CVE-2020-14372, CVE-2020-25632, CVE-2020-25647, CVE-2020-27749, CVE-2020-27779, CVE-2021-20225, CVE-2021-20233