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RHEL 8 : c-ares (RHSA-2022:2043)

medium Nessus Plugin ID 160995

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Synopsis

The remote Red Hat host is missing a security update for c-ares.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:2043 advisory.

 The c-ares C library defines asynchronous DNS (Domain Name System) requests and provides name resolving API.

 Security Fix(es):

 * c-ares: Missing input validation of host names may lead to domain hijacking (CVE-2021-3672)

 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.

 Additional Changes:

 For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from 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 this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL c-ares package based on the guidance in RHSA-2022:2043.

See Also

http://www.nessus.org/u?9341665d

http://www.nessus.org/u?be1fc46f

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

https://access.redhat.com/errata/RHSA-2022:2043

https://bugzilla.redhat.com/show_bug.cgi?id=1988342

Plugin Details

Severity: Medium

ID: 160995

File Name: redhat-RHSA-2022-2043.nasl

Version: 1.10

Type: local

Agent: unix

Published: 5/11/2022

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: 4.2

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-3672

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:c-ares-devel, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:c-ares

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: 5/10/2022

Vulnerability Publication Date: 8/13/2021

Reference Information

CVE: CVE-2021-3672

CWE: 79

RHSA: 2022:2043