RHEL 8 : Red Hat Virtualization Host security update [ovirt-4.4.6] (Moderate) (RHSA-2021:2239)

critical Nessus Plugin ID 165137

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Synopsis

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

Description

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:2239 advisory.

- python-cryptography: Bleichenbacher timing oracle attack against RSA decryption (CVE-2020-25659)

- krb5: unbounded recursion via an ASN.1-encoded Kerberos message in lib/krb5/asn.1/asn1_encode.c may lead to DoS (CVE-2020-28196)

- python-cryptography: Large inputs for symmetric encryption can trigger integer overflow leading to buffer overflow (CVE-2020-36242)

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 redhat-virtualization-host-image-update package.

Plugin Details

Severity: Critical

ID: 165137

File Name: redhat-RHSA-2021-2239.nasl

Version: 1.6

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/15/2022

Updated: 10/11/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-36242

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.4

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:redhat-virtualization-host-image-update

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: 6/3/2021

Vulnerability Publication Date: 11/5/2020

Reference Information

CVE: CVE-2020-25659, CVE-2020-28196, CVE-2020-36242

CWE: 119, 190, 385, 674

RHSA: 2021:2239

Detections

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