CVE-2020-36475
7.5
HIGH
CVSS 3.1
EPSS 0.98%
Description
An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). The calculations performed by mbedtls_mpi_exp_mod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs.
How to fix CVE-2020-36475
To remediate CVE-2020-36475, upgrade the affected package to a fixed version below.
- Debian/mbedtls—upgrade to 2.16.9-0.1 or later
Is CVE-2020-36475 being exploited?
Low — EPSS is 1.0%, 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 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |