Alpine: multiple libidn packages: security update to 1.33-r0

high Tenable Self-Hosted Container Security Plugin ID 424034

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- idn in GNU libidn before 1.33 might allow remote attackers to obtain sensitive memory information by
reading a zero byte as input, which triggers an out-of-bounds read. (CVE-2015-8948)

- The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context-dependent attackers to
cause a denial of service (out-of-bounds read and crash) via 64 bytes of input. (CVE-2016-6261)

- idn in libidn before 1.33 might allow remote attackers to obtain sensitive memory information by reading a
zero byte as input, which triggers an out-of-bounds read, a different vulnerability than CVE-2015-8948.
(CVE-2016-6262)

- The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent
attackers to cause a denial of service (out-of-bounds read and crash) via crafted UTF-8 data.
(CVE-2016-6263)

Plugin Details

Severity: High

ID: 424034

Version: Revision 1.8

Type: Local

Family: Alpine Linux Local Security Checks

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: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2016-6262

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/20/2016

Reference Information

CVE: CVE-2015-8948, CVE-2016-6261, CVE-2016-6262, CVE-2016-6263

BID: 92070

Detections

Analytics