RHEL 8 : kernel (RHSA-2024:1877)

high Nessus Plugin ID 193471

Synopsis

The remote Red Hat host is missing one or more security updates for kernel.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1877 advisory.

- hw: cpu: AMD CPUs may transiently execute beyond unconditional direct branch (CVE-2021-26341)

- kernel: veth: ensure skb entering GRO are not cloned. (CVE-2021-47099)

- kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image (CVE-2022-1184)

- kernel: NULL pointer dereference in x86_emulate_insn may lead to DoS (CVE-2022-1852)

- kernel: use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c (CVE-2022-3640)

- kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c (CVE-2022-42895)

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 RHEL kernel package based on the guidance in RHSA-2024:1877.

See Also

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=2061703

https://bugzilla.redhat.com/show_bug.cgi?id=2070205

https://bugzilla.redhat.com/show_bug.cgi?id=2089815

https://bugzilla.redhat.com/show_bug.cgi?id=2139610

https://bugzilla.redhat.com/show_bug.cgi?id=2147356

https://bugzilla.redhat.com/show_bug.cgi?id=2267919

http://www.nessus.org/u?e065fee6

https://access.redhat.com/errata/RHSA-2024:1877

Plugin Details

Severity: High

ID: 193471

File Name: redhat-RHSA-2024-1877.nasl

Version: 1.0

Type: local

Agent: unix

Published: 4/18/2024

Updated: 4/18/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Agentless Assessment, Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-26341

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:A/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

CVSS Score Source: CVE-2022-3640

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:rhel_eus:8.6, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python3-perf

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/18/2024

Vulnerability Publication Date: 3/11/2022

Reference Information

CVE: CVE-2021-26341, CVE-2021-47099, CVE-2022-1184, CVE-2022-1852, CVE-2022-3640, CVE-2022-42895

CWE: 20, 416, 476, 552, 824

RHSA: 2024:1877