Detections
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Alpine: idn2-utils, multiple libidn2 packages: security update to 2.1.1-r0

critical Tenable Self-Hosted Container Security Plugin ID 424055

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - idn2_to_ascii_4i in lib/lookup.c in GNU libidn2 before 2.1.1 has a heap-based buffer overflow via a long
 domain string. (CVE-2019-18224)

See Also

https://security.alpinelinux.org/vuln/CVE-2019-18224

Plugin Details

Severity: Critical

ID: 424055

Version: Revision 1.8

Type: Local

Published: 4/4/2025

Updated: 7/2/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.15

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-18224

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 10/21/2019

Reference Information

CVE: CVE-2019-18224