RHEL 7 : kpatch-patch (RHSA-2021:0862)

high Nessus Plugin ID 147833

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0862 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):

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

* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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-2021:0862.

Plugin Details

Severity: High

ID: 147833

File Name: redhat-RHSA-2021-0862.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/17/2021

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: Medium

Score: 6.7

Vendor

Vendor Severity: Important

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-2020-29661

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: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_2_1, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_2_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_6_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_15_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1160_11_1

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: 3/16/2021

Vulnerability Publication Date: 12/9/2020

Reference Information

CVE: CVE-2020-28374, CVE-2020-29661

CWE: 20, 416

RHSA: 2021:0862

Detections

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