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Slackware Linux 15.0 / current libtasn1 Vulnerability (SSA:2026-008-01)

high Nessus Plugin ID 282489

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Synopsis

The remote Slackware Linux host is missing a security update to libtasn1.

Description

The version of libtasn1 installed on the remote host is prior to 4.21.0. It is, therefore, affected by a vulnerability as referenced in the SSA:2026-008-01 advisory.

 New libtasn1 packages are available for Slackware 15.0 and -current to fix a security issue.

Tenable has extracted the preceding description block directly from the libtasn1 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

Upgrade the affected libtasn1 package.

See Also

http://www.nessus.org/u?55892be2

Plugin Details

Severity: High

ID: 282489

File Name: Slackware_SSA_2026-008-01.nasl

Version: 1.1

Type: local

Published: 1/9/2026

Updated: 1/9/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-13151

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:N/I:N/A:H

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

Vulnerability Information

CPE: p-cpe:/a:slackware:slackware_linux:libtasn1, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:15.0

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

Exploit Ease: No known exploits are available

Patch Publication Date: 1/8/2026

Vulnerability Publication Date: 1/7/2026

Reference Information

CVE: CVE-2025-13151