RHEL 8 : kpatch-patch (RHSA-2020:4331)

high Nessus Plugin ID 170291

Synopsis

The remote Red Hat host is missing one or more security updates for kpatch-patch.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4331 advisory.

- kernel: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt (CVE-2020-14385)

- kernel: memory corruption in net/packet/af_packet.c leads to elevation of privilege (CVE-2020-14386)

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 kpatch-patch package based on the guidance in RHSA-2020:4331.

See Also

http://www.nessus.org/u?248c2c02

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

https://access.redhat.com/errata/RHSA-2020:4331

https://bugzilla.redhat.com/show_bug.cgi?id=1874800

https://bugzilla.redhat.com/show_bug.cgi?id=1875699

Plugin Details

Severity: High

ID: 170291

File Name: redhat-RHSA-2020-4331.nasl

Version: 1.2

Type: local

Agent: unix

Published: 1/23/2023

Updated: 4/28/2024

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: 5.3

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

CVSS Score Source: CVE-2020-14386

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_13_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_14_3, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_19_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_1_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-193_6_3

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: 10/26/2020

Vulnerability Publication Date: 9/4/2020

Reference Information

CVE: CVE-2020-14385, CVE-2020-14386

CWE: 131, 250

RHSA: 2020:4331