RHEL 8 : Red Hat Virtualization Host security bug fix and enhancement update [ovirt-4.4.4] (Important) (RHSA-2021:0401)

high Nessus Plugin ID 146094

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0401 advisory.

- dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25684)

- dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25685)

- dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker (CVE-2020-25686)

- sudo: Heap buffer overflow in argument parsing (CVE-2021-3156)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected redhat-release-virtualization-host, redhat-virtualization-host-image-update and / or redhat- virtualization-host-image-update-placeholder packages.

See Also

https://cwe.mitre.org/data/definitions/122.html

https://cwe.mitre.org/data/definitions/290.html

https://cwe.mitre.org/data/definitions/358.html

https://access.redhat.com/security/cve/CVE-2020-25684

https://access.redhat.com/security/cve/CVE-2020-25685

https://access.redhat.com/security/cve/CVE-2020-25686

https://access.redhat.com/security/cve/CVE-2021-3156

https://access.redhat.com/errata/RHSA-2021:0401

https://bugzilla.redhat.com/1889686

https://bugzilla.redhat.com/1889688

https://bugzilla.redhat.com/1890125

https://bugzilla.redhat.com/1917684

Plugin Details

Severity: High

ID: 146094

File Name: redhat-RHSA-2021-0401.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2/3/2021

Updated: 8/12/2022

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

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

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2021-3156

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:2.3:a:redhat:enterprise_linux:redhat-virtualization-host-image-update:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:redhat-virtualization-host-image-update-placeholder:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:redhat-release-virtualization-host:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux:8:*:*:*:*:*:*:*

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: 2/3/2021

Vulnerability Publication Date: 1/19/2021

CISA Known Exploited Dates: 4/27/2022

Exploitable With

CANVAS (CANVAS)

Metasploit (Sudo Heap-Based Buffer Overflow)

Reference Information

CVE: CVE-2020-25684, CVE-2020-25685, CVE-2020-25686, CVE-2021-3156

RHSA: 2021:0401

IAVA: 2021-A-0041, 2021-A-0053

CWE: 122, 290, 358