CVE-2020-16150
5.5
MEDIUM
CVSS 3.1
EPSS 0.08%
Description
A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.
How to fix CVE-2020-16150
To remediate CVE-2020-16150, upgrade the affected package to a fixed version below.
- Alpine/mbedtls—upgrade to 2.16.8-r0 or later
- —upgrade to 2.16.9-0.1 or later
Is CVE-2020-16150 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.16.8-r0
- from 0, < 2.16.9-0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |