Detections
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RHEL 8 : kpatch-patch (RHSA-2021:3181)
high Nessus Plugin ID 152619
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3181 advisory.- kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)
- kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)
- kernel: race condition for removal of the HCI controller (CVE-2021-32399)
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-2021-22555
https://access.redhat.com/security/cve/CVE-2021-32399
https://access.redhat.com/errata/RHSA-2021:3181
https://bugzilla.redhat.com/1965461
Plugin Details
Severity: High
ID: 152619
File Name: redhat-RHSA-2021-3181.nasl
Version: 1.13
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 8/17/2021
Updated: 5/24/2023
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.7
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 4
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2021-22555
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: cpe:/o:redhat:rhel_e4s:8.1, cpe:/o:redhat:rhel_eus:8.1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_27_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_32_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_34_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_38_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_43_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_44_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_48_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_51_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_51_2
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: 8/17/2021
Vulnerability Publication Date: 4/20/2021
Exploitable With
CANVAS (CANVAS)
Core Impact
Metasploit (Netfilter x_tables Heap OOB Write Privilege Escalation)