Alibaba Cloud Linux 3 : 0014: libtasn1 (ALINUX3-SA-2023:0014)

critical Nessus Plugin ID 236600

Synopsis

The remote Alibaba Cloud Linux host is missing one or more security updates.

Description

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2023:0014 advisory.

Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

CVE-2021-46848:
GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux 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 packages.

Plugin Details

Severity: Critical

ID: 236600

File Name: alinux3_sa_2023-0014.nasl

Version: 1.1

Type: local

Family: Alibaba Cloud Linux Local Security Checks

Published: 5/14/2025

Updated: 5/14/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

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

CVSS Score Source: CVE-2021-46848

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1-doc, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1-tools, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1-tools-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:libtasn1-debugsource

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/29/2023

Vulnerability Publication Date: 10/24/2022

Reference Information

CVE: CVE-2021-46848

Detections

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