Alibaba Cloud Linux 3 : 0081: nss (ALINUX3-SA-2021:0081)

critical Nessus Plugin ID 236713

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-2021:0081 advisory.

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

CVE-2021-43527:
NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.

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: 236713

File Name: alinux3_sa_2021-0081.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: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-43527

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-sysinit, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-softokn-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-tools, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-softokn-freebl-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-sysinit-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-util, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-softokn, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-softokn-freebl-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-softokn-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-debugsource, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-pkcs11-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-util-debuginfo, cpe:/o:alibabacloud:alibaba_cloud_linux_3, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-util-devel, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-softokn-freebl, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-tools-debuginfo, p-cpe:/a:alibabacloud:alibaba_cloud_linux_3:nss-devel

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: 12/9/2021

Vulnerability Publication Date: 12/1/2021

Reference Information

CVE: CVE-2021-43527

Detections

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