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Rocky Linux 8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc Multiple Vulnerabilities (crlsa-2023_0049)

high Nessus Plugin ID 354151

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-2023_0049 advisory.

 * grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass (CVE-2022-2601)

 * grub2: Heap based out-of-bounds write when redering certain unicode sequences (CVE-2022-3775)

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-2023_0049.

See Also

https://access.redhat.com/errata/RHSA-2023:0049

https://bugzilla.redhat.com/show_bug.cgi?id=2112975

https://bugzilla.redhat.com/show_bug.cgi?id=2138880

https://errata.build.resf.org/RLSA-2023:0049

http://www.nessus.org/u?7d94eacf

http://www.nessus.org/u?9e3dcb38

Plugin Details

Severity: High

ID: 354151

File Name: ciq_rocky_linux_8_crlsa-2023_0049.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: 7.7

Percentile: 99.1

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-2022-2601

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.7

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 1/9/2023

Vulnerability Publication Date: 11/15/2022

Reference Information

CVE: CVE-2022-2601, CVE-2022-3775