Detections
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Alpine: multiple newlib packages: security update to 4.1.0-r0

critical Tenable Cloud Security Plugin ID 405724

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory
 allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer
 overflow, leading to an allocation of a small buffer and then to a heap-based buffer overflow.
 (CVE-2021-3420)

See Also

https://security.alpinelinux.org/vuln/CVE-2021-3420

Plugin Details

Severity: Critical

ID: 405724

Version: Revision 1.30

Type: Local

Published: 10/31/2023

Updated: 6/15/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2021-3420

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/3/2021

Reference Information

CVE: CVE-2021-3420

IAVA: 2021-A-0387