CVE-2021-3580
7.5
HIGH
CVSS 3.1
EPSS 0.10%
Description
A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.
How to fix CVE-2021-3580
To remediate CVE-2021-3580, upgrade the affected package to a fixed version below.
- Alpine/nettle—upgrade to 3.5.1-r2 or later
- Debian/nettle—upgrade to 3.7.3-1 or later
Is CVE-2021-3580 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.5.1-r2
- from 0, < 3.7.3-1
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 |