CVE-2020-16150

Published: Sep 2, 2020Modified: Nov 21, 2024

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: NVD

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.

Affected (7)

Products: Arm: Mbed Tls · Fedoraproject: Fedora · Debian: Debian Linux

1 product

1 product

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Arm Mbed Tls	Before 2.7.17
Arm Mbed Tls	From 2.17.0 to 2.24.0
Arm Mbed Tls	From 2.8.0 to 2.16.8

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 31
Fedoraproject Fedora	Version 32
Fedoraproject Fedora	Version 33

Configuration C

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0

Related CWEs

Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (12)

https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://tls.mbed.org/tech-updates/security-advisories

Source: cve@mitre.org

Vendor Advisory

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1

Source: cve@mitre.org

Vendor Advisory

https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://tls.mbed.org/tech-updates/security-advisories

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.