RHEL 8 : kpatch-patch (RHSA-2019:3936)

medium Nessus Plugin ID 131177

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 a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2019:3936 advisory.

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security Fix(es):

* hw: Machine Check Error on Page Size Change (IFU) (CVE-2018-12207)

* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)

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

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-2019:3936.

See Also

http://www.nessus.org/u?c7ee2fd1

https://access.redhat.com/security/vulnerabilities/ifu-page-mce

https://access.redhat.com/solutions/tsx-asynchronousabort

https://bugzilla.redhat.com/show_bug.cgi?id=1646768

https://bugzilla.redhat.com/show_bug.cgi?id=1753062

https://access.redhat.com/errata/RHSA-2019:3936

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

Plugin Details

Severity: Medium

ID: 131177

File Name: redhat-RHSA-2019-3936.nasl

Version: 1.5

Type: local

Agent: unix

Published: 11/21/2019

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.1

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2019-11135

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-4_18_0-147, cpe:/o:redhat:rhel_eus:8.1, cpe:/o:redhat:enterprise_linux:8

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: 11/20/2019

Vulnerability Publication Date: 11/14/2019

Reference Information

CVE: CVE-2018-12207, CVE-2019-11135

CWE: 203, 226

RHSA: 2019:3936