Alpine: multiple nss packages: security update to 3.55-r0

critical Tenable Cloud Security Plugin ID 424259

Description

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

- When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which
leaked partial information about the nonce used during signature generation. Given an electro-magnetic
trace of a few signature generations, the private key could have been computed. This vulnerability affects
Firefox < 80 and Firefox for Android < 80. (CVE-2020-6829)

- When converting coordinates from projective to affine, the modular inversion was not performed in constant
time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80
and Firefox for Android < 80. (CVE-2020-12400)

- During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar
multiplication was removed, resulting in variable-time execution dependent on secret data. This
vulnerability affects Firefox < 80 and Firefox for Android < 80. (CVE-2020-12401)

- A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using
multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling
multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest
threat from this vulnerability is to confidentiality and system availability. (CVE-2020-12403)

Plugin Details

Severity: Critical

ID: 424259

Version: Revision 1.6

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: Medium

Score: 4.3

Percentile: 53.04

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2020-12403

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/13/2020

Reference Information

CVE: CVE-2020-12400, CVE-2020-12401, CVE-2020-12403, CVE-2020-6829

Detections

Analytics