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Amazon Linux 2 : ldns (ALAS-2023-2032)

medium Nessus Plugin ID 175022

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of ldns installed on the remote host is prior to 1.6.16-10. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2032 advisory.

 When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload. (CVE-2020-19860)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'yum update ldns' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2032.html

https://alas.aws.amazon.com/cve/html/CVE-2020-19860.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 175022

File Name: al2_ALAS-2023-2032.nasl

Version: 1.2

Type: local

Agent: unix

Published: 5/2/2023

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-19860

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ldns-doc, p-cpe:/a:amazon:linux:ldns-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:ldns, p-cpe:/a:amazon:linux:ldns-python, p-cpe:/a:amazon:linux:ldns-devel

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/27/2023

Vulnerability Publication Date: 1/21/2022

Reference Information

CVE: CVE-2020-19860