CentOS Linux 8.5 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2023:1690294029)

low Nessus Plugin ID 366945

Synopsis

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

Description

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2023:1690294029 advisory.

- A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. This vulnerability is similar to the previous CVE-2018-13405 and adds the missed fix for the XFS. (CVE-2021-4037)

- A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario. (CVE-2021-4093)

- A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system. (CVE-2022-0330)

- A use-after-free flaw was found in the Linux kernel's sound subsystem in the way a user triggers concurrent calls of PCM hw_params. The hw_free ioctls or similar race condition happens inside ALSA PCM for other ioctls. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-1048)

- With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
(CVE-2022-1789)

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 TuxCare advisory CENTOS8.5:CLSA-2023:1690294029.

Plugin Details

Severity: Low

ID: 366945

File Name: tuxcare_centos_8.5_CLSA-2023-1690294029.nasl

Version: 1.2

Type: Local

Agent: unix

Family: CentOS Local Security Checks

Published: 10/18/2026

Updated: 10/18/2026

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

Percentile: 99.87

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

CVSS Score Source: CVE-2021-4093

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

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

CVSS v4

Risk Factor: Low

Base Score: 2.1

Threat Score: 2.1

Threat Vector: CVSS:4.0/E:A

Vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2022-3566

Vulnerability Information

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/25/2023

Vulnerability Publication Date: 7/21/2021

CISA Known Exploited Vulnerability Due Dates: 4/20/2023

Reference Information

CVE: CVE-2021-4037, CVE-2021-4093, CVE-2022-0330, CVE-2022-1048, CVE-2022-1789, CVE-2022-20572, CVE-2022-2153, CVE-2022-25265, CVE-2022-2663, CVE-2022-3028, CVE-2022-3524, CVE-2022-3564, CVE-2022-3566, CVE-2022-3567, CVE-2022-3619, CVE-2022-3628, CVE-2022-41218, CVE-2022-4129, CVE-2022-4139, CVE-2022-41674, CVE-2022-42720, CVE-2022-42721, CVE-2022-42722, CVE-2022-4378, CVE-2022-47929, CVE-2022-49910, CVE-2023-0266, CVE-2023-0394, CVE-2023-23454, CVE-2023-32233

CLSA: 2023:1690294029

Detections

Analytics