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RHEL 8 : kernel-rt (RHSA-2023:7548)
high Nessus Plugin ID 186373
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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-2023:7548 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: bpf: Incorrect verifier pruning leads to unsafe code paths being incorrectly marked as safe (CVE-2023-2163)
* kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags (CVE-2023-3812)
* kernel: use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)
* kernel: use-after-free due to race condition occurring in dvb_register_device() (CVE-2022-45884)
* kernel: use-after-free due to race condition occurring in dvb_net.c (CVE-2022-45886)
* kernel: use-after-free due to race condition occurring in dvb_ca_en50221.c (CVE-2022-45919)
* kernel: use-after-free in smb2_is_status_io_timeout() (CVE-2023-1192)
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-2023:7548.See Also
http://www.nessus.org/u?27ec13c5
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2148510
https://bugzilla.redhat.com/show_bug.cgi?id=2148517
https://bugzilla.redhat.com/show_bug.cgi?id=2151956
https://bugzilla.redhat.com/show_bug.cgi?id=2154178
https://bugzilla.redhat.com/show_bug.cgi?id=2224048
https://bugzilla.redhat.com/show_bug.cgi?id=2240249
Plugin Details
Severity: High
ID: 186373
File Name: redhat-RHSA-2023-7548.nasl
Version: 1.10
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/28/2023
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: High
Score: 7.3
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
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, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, cpe:/o:redhat:enterprise_linux:8, 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: 11/28/2023
Vulnerability Publication Date: 11/25/2022
Reference Information
CVE: CVE-2022-45884, CVE-2022-45886, CVE-2022-45919, CVE-2023-1192, CVE-2023-2163, CVE-2023-3812, CVE-2023-5178