CVE-2020-36421
5.3
MEDIUM
CVSS 3.1
EPSS 0.52%
Description
An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel in modular exponentiation, an RSA private key used in a secure enclave could be disclosed.
How to fix CVE-2020-36421
To remediate CVE-2020-36421, upgrade the affected package to a fixed version below.
- Debian/mbedtls—upgrade to 2.16.9-0.1 or later
Is CVE-2020-36421 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.16.9-0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |