Detections
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RHEL 7 : kpatch-patch (RHSA-2021:3768)
high Nessus Plugin ID 154072
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3768 advisory.- kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)
- kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)
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 affected packages.See Also
https://access.redhat.com/security/cve/CVE-2021-22543
https://access.redhat.com/security/cve/CVE-2021-37576
https://access.redhat.com/errata/RHSA-2021:3768
Plugin Details
Severity: High
ID: 154072
File Name: redhat-RHSA-2021-3768.nasl
Version: 1.7
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 10/13/2021
Updated: 11/28/2023
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2021-37576
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
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:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_11_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_15_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_21_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_24_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_25_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_2_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_2_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_31_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_36_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_41_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_42_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_6_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: 10/12/2021
Vulnerability Publication Date: 5/26/2021
Reference Information
CVE: CVE-2021-22543, CVE-2021-37576