RHEL 7 : kernel (RHSA-2022:1198)

high Nessus Plugin ID 159533

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:1198 advisory.

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

Security Fix(es):

* 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)

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 Fix(es):

* Adding new kernel entry in grub configuration file only after generation of new initramfs (BZ#1893756)

* Cannot mount DFS shares on RHEL7 (BZ#1937304)

* RHEL7.9 - zcrypt DD: Toleration for new IBM Z Crypto Hardware (BZ#1997156)

* kernel panic at skb_free_datagram_locked on 3.10.0-1160.45.1.el7 (BZ#2028740)

* Lots of tasks are getting stuck in I/O wait waiting on the buffer_head locked by the task that is busy shrinking slab for freeing pages - 3 patches to fs/buffer.c (BZ#2030609)

* [RHEL 7.9 Bug] x86/platform/uv: Add more to secondary CPU kdump info (BZ#2042462)

* REGRESSION System panicking in __kmalloc+0x94 from a freelist issue introduced by a block patch.
(BZ#2054743)

Enhancement(s):

* RHEL7.9 - kernel: Add support for CPU-MF counter second version 7 (BZ#2048920)

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.

Plugin Details

Severity: High

ID: 159533

File Name: redhat-RHSA-2022-1198.nasl

Version: 1.11

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 4/5/2022

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-4083

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

CVSS Score Source: CVE-2021-4028

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-devel, 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-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux: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: 4/5/2022

Vulnerability Publication Date: 1/18/2022

Reference Information

CVE: CVE-2021-4028, CVE-2021-4083

CWE: 362, 416

RHSA: 2022:1198

Detections

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