CVE-2021-41990
strongswan - security update
7.5
HIGH
CVSS 3.1
EPSS 1.4%
Description
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.
How to fix CVE-2021-41990
To remediate CVE-2021-41990, upgrade the affected package to a fixed version below.
- Alpine/strongswan—upgrade to 5.8.4-r3 or later
- —upgrade to 5.9.1-1+deb11u1 or later
- —upgrade to 5.7.2-1+deb10u1 or later
Is CVE-2021-41990 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.8.4-r3
- from 0, < 5.9.1-1+deb11u1
- from 0, < 5.7.2-1+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |