RHEL 8 : kernel (RHSA-2022:1455)

high Nessus Plugin ID 160037

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-2022:1455 advisory.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

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

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

* kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)

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.

Bug Fixes:

* Power10 PMU fix for PM_CYC/PM_INST_CMPL ( kernel/perf) (BZ#2040665)

* call traces and packet drops seen after changing mtu of ibmvnic interface. (ibmvnic/ P10/ Everglade) (BZ#2050679)

* zfcp: fix failed recovery on gone remote port, non-NPIV FCP dev (BZ#2050739)

* overlay mount fails with ELOOP (Too many levels of symbolic links) (BZ#2053030)

* Host unable to automatically add namespaces belonging to a new ANA group (BZ#2055466)

* scheduler updates and fixes [None8.4.0.z] (BZ#2056834)

* nf_reinject calls nf_queue_entry_free on an already freed entry->state (BZ#2061445)

* First Packet Latency impacted by mlx5 warning msg (BZ#2067992)

* openvswitch connection tracking sends incorrect flow key for some upcalls (BZ#2068477)

* Backport upstream rcu commits up to v5.10 (BZ#2069819)

* Packages have been upgraded to a later upstream version: kernel (4.18.0) (BZ#2036932)

Enhancement:

* zcrypt DD: Toleration for new IBM Z Crypto Hardware (BZ#2054097)

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 affected packages.

See Also

http://www.nessus.org/u?230e8f99

https://access.redhat.com/security/updates/classification/#important

https://access.redhat.com/errata/RHSA-2022:1455

https://bugzilla.redhat.com/show_bug.cgi?id=2029923

https://bugzilla.redhat.com/show_bug.cgi?id=2051505

https://bugzilla.redhat.com/show_bug.cgi?id=2056830

Plugin Details

Severity: High

ID: 160037

File Name: redhat-RHSA-2022-1455.nasl

Version: 1.13

Type: local

Agent: unix

Published: 4/21/2022

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: High

Score: 8.9

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-2022-25636

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: p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, cpe:/o:redhat:rhel_eus:8.4, 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-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug, 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: 4/20/2022

Vulnerability Publication Date: 1/18/2022

Exploitable With

Core Impact

Metasploit (Docker cgroups Container Escape)

Reference Information

CVE: CVE-2021-4083, CVE-2022-0492, CVE-2022-25636

CWE: 362, 787, 862

RHSA: 2022:1455