RHEL 8 : kernel (RHSA-2022:0825)

high Nessus Plugin ID 158822

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-2022:0825 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: missing check in ioctl allows kernel memory read/write (CVE-2022-0516)

- 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.

See Also

https://access.redhat.com/security/cve/CVE-2021-0920

https://access.redhat.com/security/cve/CVE-2021-4154

https://access.redhat.com/security/cve/CVE-2022-0330

https://access.redhat.com/security/cve/CVE-2022-0435

https://access.redhat.com/security/cve/CVE-2022-0492

https://access.redhat.com/security/cve/CVE-2022-0516

https://access.redhat.com/security/cve/CVE-2022-0847

https://access.redhat.com/security/cve/CVE-2022-22942

https://access.redhat.com/errata/RHSA-2022:0825

https://bugzilla.redhat.com/2031930

https://bugzilla.redhat.com/2034514

https://bugzilla.redhat.com/2042404

https://bugzilla.redhat.com/2044809

https://bugzilla.redhat.com/2048738

https://bugzilla.redhat.com/2050237

https://bugzilla.redhat.com/2051505

https://bugzilla.redhat.com/2060795

Plugin Details

Severity: High

ID: 158822

File Name: redhat-RHSA-2022-0825.nasl

Version: 1.11

Type: local

Agent: unix

Published: 3/11/2022

Updated: 9/22/2022

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7.8

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

Temporal Vector: E:H/RL:OF/RC: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: 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:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-stablelists, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python3-perf

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 Dates: 6/13/2022, 5/16/2022

Exploitable With

CANVAS (CANVAS)

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-2022-0516, CVE-2022-0847, CVE-2022-22942

RHSA: 2022:0825

CWE: 120, 200, 201, 281, 287, 416, 665