Detections
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RHEL 8 : kernel-rt (RHSA-2022:1209)
high Nessus Plugin ID 159538
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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-2022:1209 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: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)
* kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)
* kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c (CVE-2020-8649)
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.
Bug Fix(es):
* kernel-rt: update RT source tree to the latest RHEL-8.2.z16 Batch (BZ#2066950)
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-2022:1209.See Also
http://www.nessus.org/u?8ffab75d
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2022:1209
https://bugzilla.redhat.com/show_bug.cgi?id=1802555
Plugin Details
Severity: High
ID: 159538
File Name: redhat-RHSA-2022-1209.nasl
Version: 1.9
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 4/6/2022
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-2022-0435
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
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_eus: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: 4/5/2022
Vulnerability Publication Date: 2/6/2020