RHEL 8 : kpatch-patch (RHSA-2022:0851)

high Nessus Plugin ID 158923

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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-2022:0851 advisory.

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security Fix(es):

* kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

* kernel: use-after-free in RDMA listen() (CVE-2021-4028)

* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)

* kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

* kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

* kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

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-2022:0851.

Plugin Details

Severity: High

ID: 158923

File Name: redhat-RHSA-2022-0851.nasl

Version: 1.16

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/15/2022

Updated: 11/7/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 6

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-0492

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

CVSS Score Source: CVE-2022-22942

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_54_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_57_1, cpe:/o:redhat:rhel_e4s:8.1, 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_59_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_52_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147_56_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_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: 3/14/2022

Vulnerability Publication Date: 12/15/2021

CISA Known Exploited Vulnerability Due Dates: 6/13/2022

Exploitable With

Metasploit (vmwgfx Driver File Descriptor Handling Priv Esc)

Reference Information

CVE: CVE-2021-0920, CVE-2021-4028, CVE-2021-4083, CVE-2022-0330, CVE-2022-0492, CVE-2022-22942

CWE: 281, 362, 416, 862

RHSA: 2022:0851

Detections

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