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RHEL 7 : kernel (RHSA-2020:3804)

medium Nessus Plugin ID 140745

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Synopsis

The remote Red Hat host is missing a security update for kernel.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:3804 advisory.

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

 Security Fix(es):

 * kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service (CVE-2018-1120)

 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):

 * [RHEL-7.9] Kdump failed to start when secure boot enabled: kexec_file_load failed: Required key not available (BZ#1866968)

 * Kernel bug report in cgroups on heavily contested 3.10 node (BZ#1869506)

 * System gets crashed with hard lockup after a corruption found in wait queue list [bnx2fc] (BZ#1870595)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kernel package based on the guidance in RHSA-2020:3804.

See Also

http://www.nessus.org/u?a29b6e8e

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

https://access.redhat.com/errata/RHSA-2020:3804

https://bugzilla.redhat.com/show_bug.cgi?id=1575472

Plugin Details

Severity: Medium

ID: 140745

File Name: redhat-RHSA-2020-3804.nasl

Version: 1.13

Type: local

Agent: unix

Published: 9/23/2020

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: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.7

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

CVSS Score Source: CVE-2018-1120

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_e4s:7.4, p-cpe:/a:redhat:enterprise_linux:kernel-tools, 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-bootwrapper, cpe:/o:redhat:rhel_aus:7.4, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, cpe:/o:redhat:rhel_tus:7.4, 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: 9/22/2020

Vulnerability Publication Date: 5/17/2018

Reference Information

CVE: CVE-2018-1120

BID: 104229

CWE: 122

IAVA: 2018-A-0174-S

RHSA: 2020:3804