RHEL 8 : unbound (RHSA-2022:7622)

critical Nessus Plugin ID 167084

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-2022:7622 advisory.

- unbound: integer overflow in the regional allocator via the ALIGN_UP macro (CVE-2019-25033)

- unbound: novel ghost domain attack that allows attackers to trigger continued resolvability of malicious domain names (CVE-2022-30698, CVE-2022-30699)

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 packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2018806

https://bugzilla.redhat.com/show_bug.cgi?id=2023549

https://bugzilla.redhat.com/show_bug.cgi?id=2027735

https://bugzilla.redhat.com/show_bug.cgi?id=2038251

https://bugzilla.redhat.com/show_bug.cgi?id=2081958

http://www.nessus.org/u?15582597

http://www.nessus.org/u?790bc9ea

https://access.redhat.com/errata/RHSA-2022:7622

https://bugzilla.redhat.com/show_bug.cgi?id=1959468

https://bugzilla.redhat.com/show_bug.cgi?id=2116725

https://bugzilla.redhat.com/show_bug.cgi?id=2116729

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

Plugin Details

Severity: Critical

ID: 167084

File Name: redhat-RHSA-2022-7622.nasl

Version: 1.6

Type: local

Agent: unix

Published: 11/8/2022

Updated: 4/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2019-25033

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:python3-unbound, p-cpe:/a:redhat:enterprise_linux:unbound, p-cpe:/a:redhat:enterprise_linux:unbound-devel, p-cpe:/a:redhat:enterprise_linux:unbound-libs

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: 11/8/2022

Vulnerability Publication Date: 8/1/2022

Reference Information

CVE: CVE-2019-25033, CVE-2022-30698, CVE-2022-30699

CWE: 190, 613

RHSA: 2022:7622