CVE-2020-16150

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory mbed.org Vendor Advisory mbed.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://tls.mbed.org/tech-updates/security-advisories vendor advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1 vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/ mailing list third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/ mailing list third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/ mailing list third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-16150?
CVE-2020-16150 has been scored as a medium severity vulnerability.
How to fix CVE-2020-16150?
To fix CVE-2020-16150, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-16150 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-16150 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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