RHEL 8 : kernel-rt (RHSA-2024:1269)

critical Nessus Plugin ID 191911

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Synopsis

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

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1269 advisory.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)

* net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)

* net/sched: sch_hfsc UAF (CVE-2023-4623)

* use-after-free in sch_qfq network scheduler (CVE-2023-4921)

* use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)

* inactive elements in nft_pipapo_walk (CVE-2023-6817)

* out-of-bounds write in qfq_change_class function (CVE-2023-31436)

* nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)

* IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

* ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)

* nfp: use-after-free in area_cache_get() (CVE-2022-3545)

* vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)

* Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

* null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)

* fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)

* use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL kernel-rt package based on the guidance in RHSA-2024:1269.

Plugin Details

Severity: Critical

ID: 191911

File Name: redhat-RHSA-2024-1269.nasl

Version: 1.4

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/12/2024

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2023-5178

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.5

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2023-35001

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra, cpe:/o:redhat:rhel_tus:8.2, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules

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: 3/12/2024

Vulnerability Publication Date: 9/9/2022

Reference Information

CVE: CVE-2022-3545, CVE-2022-38096, CVE-2022-40982, CVE-2022-41858, CVE-2023-31436, CVE-2023-3390, CVE-2023-35001, CVE-2023-3611, CVE-2023-38409, CVE-2023-40283, CVE-2023-45871, CVE-2023-4623, CVE-2023-4921, CVE-2023-5178, CVE-2023-6817, CVE-2024-0646

CWE: 120, 125, 129, 1314, 200, 416, 476, 787

RHSA: 2024:1269

Detections

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