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RHEL 7 : kernel-rt (RHSA-2024:2003)

critical Nessus Plugin ID 193759

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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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:2003 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):

 * kernel: use after free in unix_stream_sendpage (CVE-2023-4622)

 * kernel: race condition in VT_RESIZEX ioctl when vc_cons[i].d is already NULL leading to NULL pointer dereference (CVE-2020-36558)

 * kernel: bluetooth: Unauthorized management command execution (CVE-2023-2002)

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

 * kernel: irdma: Improper access control (CVE-2023-25775)

 Bug Fix(es):

 * kernel-rt: Update RT source tree to the latest RHEL-7.9z30 batch [rhel-7.9.z] (JIRA:RHEL-26440)

 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-2024:2003.

See Also

http://www.nessus.org/u?255a3935

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

https://bugzilla.redhat.com/show_bug.cgi?id=2112693

https://bugzilla.redhat.com/show_bug.cgi?id=2187308

https://bugzilla.redhat.com/show_bug.cgi?id=2231410

https://bugzilla.redhat.com/show_bug.cgi?id=2237757

https://bugzilla.redhat.com/show_bug.cgi?id=2237760

https://access.redhat.com/errata/RHSA-2024:2003

Plugin Details

Severity: Critical

ID: 193759

File Name: redhat-RHSA-2024-2003.nasl

Version: 1.2

Type: local

Agent: unix

Published: 4/24/2024

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: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2023-25775

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/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 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-2023-2002

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm

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: 4/23/2024

Vulnerability Publication Date: 7/21/2022

Reference Information

CVE: CVE-2020-36558, CVE-2023-2002, CVE-2023-25775, CVE-2023-4622, CVE-2023-4623

CWE: 250, 284, 416, 476

RHSA: 2024:2003