RHEL 7 : kernel (RHSA-2021:1531)

high Nessus Plugin ID 149444

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1531 advisory.

- kernel: malicious USB devices can lead to multiple out-of-bounds write (CVE-2019-19532)

- kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211)

- kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705)

- kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374)

- kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363)

- kernel: out-of-bounds read in libiscsi module (CVE-2021-27364)

- kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)

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 RHEL kernel package based on the guidance in RHSA-2021:1531.

Plugin Details

Severity: High

ID: 149444

File Name: redhat-RHSA-2021-1531.nasl

Version: 1.12

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/13/2021

Updated: 4/24/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

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

CVSS Score Source: CVE-2020-25705

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

CVSS Score Source: CVE-2020-28374

Vulnerability Information

CPE: cpe:/o:redhat:rhel_eus:7.7, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, 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:perf, p-cpe:/a:redhat:enterprise_linux:python-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: 5/11/2021

Vulnerability Publication Date: 12/3/2019

Reference Information

CVE: CVE-2019-19532, CVE-2020-25211, CVE-2020-25705, CVE-2020-28374, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365

CWE: 119, 122, 125, 20, 200, 330

RHSA: 2021:1531

Detections

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