Detections
Analytics
RHEL 8 : kernel-rt (RHSA-2021:0004)
medium Nessus Plugin ID 144705
Language:
Synopsis
The remote Red Hat host is missing a security update for kernel-rt.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:0004 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: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)
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 RHEL-8.3.z source tree (BZ#1906140)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue 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-2021:0004.See Also
http://www.nessus.org/u?d8763e8e
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2021:0004
Plugin Details
Severity: Medium
ID: 144705
File Name: redhat-RHSA-2021-0004.nasl
Version: 1.12
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/4/2021
Updated: 11/7/2024
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Low
Base Score: 3.6
Temporal Score: 2.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:P/A:P
CVSS Score Source: CVE-2020-25211
CVSS v3
Risk Factor: Medium
Base Score: 6
Temporal Score: 5.4
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/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: 1/4/2021
Vulnerability Publication Date: 9/9/2020
Reference Information
CVE: CVE-2020-25211