RHEL 7 : kernel (RHSA-2020:5430)

high Nessus Plugin ID 144280

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-2020:5430 advisory.

- kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c (CVE-2017-18551)

- kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

- kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

- kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

- kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

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-2017-18551

https://access.redhat.com/security/cve/CVE-2019-19447

https://access.redhat.com/security/cve/CVE-2019-9454

https://bugzilla.redhat.com/1757368

https://bugzilla.redhat.com/1781679

https://bugzilla.redhat.com/1818818

https://access.redhat.com/security/cve/CVE-2020-12770

https://access.redhat.com/security/cve/CVE-2019-20636

https://bugzilla.redhat.com/1824059

https://bugzilla.redhat.com/1834845

https://access.redhat.com/errata/RHSA-2020:5430

Plugin Details

Severity: High

ID: 144280

File Name: redhat-RHSA-2020-5430.nasl

Version: 1.8

Type: local

Agent: unix

Published: 12/15/2020

Updated: 1/23/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS Score Source: CVE-2019-20636

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

CVSS Score Source: CVE-2019-19447

Vulnerability Information

CPE: cpe:2.3:o:redhat:rhel_aus:7.4:*:*:*:*:*:*:*, cpe:2.3:o:redhat:rhel_e4s:7.4:*:*:*:*:*:*:*, cpe:2.3:o:redhat:rhel_tus:7.4:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:python-perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-abi-whitelists:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-bootwrapper:*:*:*:*:*:*:*

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 12/15/2020

Vulnerability Publication Date: 5/30/2019

Reference Information

CVE: CVE-2017-18551, CVE-2019-9454, CVE-2019-19447, CVE-2019-20636, CVE-2020-12770

CWE: 119, 416, 787, 401

RHSA: 2020:5430