RHEL 8 : kernel-rt (RHSA-2022:0819)

high Nessus Plugin ID 158808

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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-2022:0819 advisory.

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

- kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)

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

- kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

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

- kernel: improper initialization of the flags member of the new pipe_buffer (CVE-2022-0847)

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

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.

Plugin Details

Severity: High

ID: 158808

File Name: redhat-RHSA-2022-0819.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/11/2022

Updated: 1/23/2023

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7.8

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

CVSS Score Source: CVE-2022-0435

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

Vector: CVSS:3.0/AV:N/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:enterprise_linux:8, cpe:/o:redhat:rhel_aus:8.6, cpe:/o:redhat:rhel_e4s:8.6, cpe:/o:redhat:rhel_eus:8.6, cpe:/o:redhat:rhel_tus:8.6, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-core, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, 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-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-modules-extra, 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-modules, p-cpe:/a:redhat:enterprise_linux:kernel-rt-modules-extra

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: 3/10/2022

Vulnerability Publication Date: 12/15/2021

CISA Known Exploited Vulnerability Due Dates: 5/16/2022, 6/13/2022

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Dirty Pipe Local Privilege Escalation via CVE-2022-0847)

Reference Information

CVE: CVE-2021-0920, CVE-2021-4154, CVE-2022-0330, CVE-2022-0435, CVE-2022-0492, CVE-2022-0847, CVE-2022-22942

CWE: 120, 281, 287, 416, 665, 787

RHSA: 2022:0819

Detections

Analytics