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AlmaLinux 10 : libtasn1 (ALSA-2026:28235)

high Nessus Plugin ID 322545

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:28235 advisory.

 * libtasn1: libtasn1: Denial of Service via stack-based buffer overflow in asn1_expend_octet_string (CVE-2025-13151)

Tenable has extracted the preceding description block directly from the AlmaLinux 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

Update the affected libtasn1, libtasn1-devel and / or libtasn1-tools packages.

See Also

https://access.redhat.com/errata/RHSA-2026:28235

https://errata.almalinux.org/10/ALSA-2026-28235.html

Plugin Details

Severity: High

ID: 322545

File Name: alma_linux_ALSA-2026-28235.nasl

Version: 1.1

Type: Local

Published: 6/24/2026

Updated: 6/24/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/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: cpe:/o:alma:linux:10::appstream, cpe:/o:alma:linux:10::sap_hana, cpe:/o:alma:linux:10, cpe:/o:alma:linux:10::highavailability, cpe:/o:alma:linux:10::nfv, p-cpe:/a:alma:linux:libtasn1, cpe:/o:alma:linux:10::baseos, cpe:/o:alma:linux:10::supplementary, cpe:/o:alma:linux:10::sap, cpe:/o:alma:linux:10::resilientstorage, cpe:/o:alma:linux:10::powertools, p-cpe:/a:alma:linux:libtasn1-devel, cpe:/o:alma:linux:10::realtime, p-cpe:/a:alma:linux:libtasn1-tools

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 1/7/2026

Reference Information

CVE: CVE-2025-13151

CWE: 120

RHSA: 2026:28235