Debian DSA-3988-1 : libidn2-0 - security update

critical Nessus Plugin ID 103580

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Synopsis

The remote Debian host is missing a security-related update.

Description

An integer overflow vulnerability was discovered in decode_digit() in libidn2-0, the GNU library for Internationalized Domain Names (IDNs), allowing a remote attacker to cause a denial of service against an application using the library (application crash).

Solution

Upgrade the libidn2-0 packages.

For the oldstable distribution (jessie), this problem has been fixed in version 0.10-2+deb8u1.

For the stable distribution (stretch), this problem has been fixed in version 0.16-1+deb9u1.

Plugin Details

Severity: Critical

ID: 103580

File Name: debian_DSA-3988.nasl

Version: 3.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/2/2017

Updated: 11/19/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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-2017-14062

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: p-cpe:/a:debian:debian_linux:libidn2-0, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2017

Reference Information

CVE: CVE-2017-14062

DSA: 3988

Detections

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