Alpine: multiple strongswan packages: security update to 5.9.1-r2 (deprecated)

high Tenable Self-Hosted Container Security Plugin ID 400037

Description

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

- The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an
RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent
by an initiator. Remote code execution cannot occur. (CVE-2021-41990)

- The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving
many requests with different certificates to fill the cache and later trigger the replacement of cache
entries. The code attempts to select a less-often-used cache entry by means of a random number generator,
but this is not done correctly. Remote code execution might be a slight possibility. (CVE-2021-41991)

Plugin Details

Severity: High

ID: 400037

Version: Revision 1.26

Type: Local

Family: Alpine Linux Local Security Checks

Published: 1/31/2022

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.51

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-41991

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/21/2021

Vulnerability Publication Date: 10/18/2021

Reference Information

CVE: CVE-2021-41990, CVE-2021-41991

Detections

Analytics