Detections
Analytics
RHEL 8 : kpatch-patch (RHSA-2022:8989)
high Nessus Plugin ID 168707
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Synopsis
The remote Red Hat host is missing one or more security updates for kpatch-patch.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:8989 advisory.The kpatch management tool provides a kernel patching infrastructure which allows you to patch a running kernel without rebooting or restarting any processes.
Security Fix(es):
* kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region (CVE-2022-1158)
* kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)
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 kpatch-patch package based on the guidance in RHSA-2022:8989.See Also
http://www.nessus.org/u?3d4cad22
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/errata/RHSA-2022:8989
Plugin Details
Severity: High
ID: 168707
File Name: redhat-RHSA-2022-8989.nasl
Version: 1.8
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/13/2022
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: Critical
Score: 9.2
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2022-2639
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_90_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_93_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_87_1, cpe:/o:redhat:rhel_e4s:8.2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_81_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_91_1
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: 12/13/2022
Vulnerability Publication Date: 6/6/2022
Reference Information
CVE: CVE-2022-1158, CVE-2022-2639