RHEL 7 : kernel-rt (RHSA-2021:2316)

high Nessus Plugin ID 150380

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-2021:2316 advisory.

- kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

- kernel: Improper input validation in some Intel(R) Graphics Drivers (CVE-2020-12363)

- kernel: Null pointer dereference in some Intel(R) Graphics Drivers (CVE-2020-12364)

- kernel: Speculation on pointer arithmetic against bpf_context pointer (CVE-2020-27170)

- kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)

- kernel: Use after free via PI futex state (CVE-2021-3347)

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-2020-8648

https://access.redhat.com/security/cve/CVE-2020-12362

https://access.redhat.com/security/cve/CVE-2020-12363

https://access.redhat.com/security/cve/CVE-2020-12364

https://access.redhat.com/security/cve/CVE-2020-27170

https://access.redhat.com/security/cve/CVE-2021-3347

https://access.redhat.com/errata/RHSA-2021:2316

https://bugzilla.redhat.com/1802559

https://bugzilla.redhat.com/1922249

https://bugzilla.redhat.com/1930246

https://bugzilla.redhat.com/1930249

https://bugzilla.redhat.com/1930251

https://bugzilla.redhat.com/1940627

Plugin Details

Severity: High

ID: 150380

File Name: redhat-RHSA-2021-2316.nasl

Version: 1.8

Type: local

Agent: unix

Published: 6/9/2021

Updated: 12/27/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-3347

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm

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: 6/8/2021

Vulnerability Publication Date: 2/6/2020

Reference Information

CVE: CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-27170, CVE-2020-8648, CVE-2021-3347

CWE: 190, 20, 200, 416, 476

RHSA: 2021:2316