Vulnerabilities > CVE-2020-16150 - Information Exposure Through Discrepancy vulnerability in multiple products

CVSS 5.5 - MEDIUM

Attack vector

LOCAL

Attack complexity

LOW

Privileges required

LOW

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

NONE

local

low complexity

NVD

Published: 2020-09-02

Updated: 2024-11-21

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Arm ARM Mbed TLS - ARM Mbed TLS 1.3.0 ARM Mbed TLS 1.3.1 ARM Mbed TLS 1.3.2 ARM Mbed TLS 1.3.3 ARM Mbed TLS 1.3.4 ARM Mbed TLS 1.3.5 ARM Mbed TLS 1.3.6 ARM Mbed TLS 1.3.7 ARM Mbed TLS 1.3.8 ARM Mbed TLS 1.3.9 ARM Mbed TLS 1.3.10 ARM Mbed TLS 1.3.11 ARM Mbed TLS 1.3.12 ARM Mbed TLS 1.3.13 ARM Mbed TLS 1.3.14 ARM Mbed TLS 1.3.15 ARM Mbed TLS 1.3.16 ARM Mbed TLS 1.3.17 ARM Mbed TLS 1.3.18 ARM Mbed TLS 1.3.19 ARM Mbed TLS 1.3.20 ARM Mbed TLS 1.3.21 ARM Mbed TLS 1.3.22 ARM Mbed TLS 2.0.0 ARM Mbed TLS 2.1.0 ARM Mbed TLS 2.1.1 ARM Mbed TLS 2.1.2 ARM Mbed TLS 2.1.3 ARM Mbed TLS 2.1.4 ARM Mbed TLS 2.1.5 ARM Mbed TLS 2.1.6 ARM Mbed TLS 2.1.7 ARM Mbed TLS 2.1.8 ARM Mbed TLS 2.1.9 ARM Mbed TLS 2.1.10 ARM Mbed TLS 2.1.11 ARM Mbed TLS 2.1.12 ARM Mbed TLS 2.1.13 ARM Mbed TLS 2.1.14 ARM Mbed TLS 2.1.15 ARM Mbed TLS 2.1.16 ARM Mbed TLS 2.1.17 ARM Mbed TLS 2.1.18 ARM Mbed TLS 2.2.0 ARM Mbed TLS 2.2.1 ARM Mbed TLS 2.2.2 ARM Mbed TLS 2.2.3 ARM Mbed TLS 2.3.0 ARM Mbed TLS 2.3.1 ARM Mbed TLS 2.3.2 ARM Mbed TLS 2.4.0 ARM Mbed TLS 2.4.1 ARM Mbed TLS 2.4.2 ARM Mbed TLS 2.5.0 ARM Mbed TLS 2.5.1 ARM Mbed TLS 2.6.0 ARM Mbed TLS 2.6.1 ARM Mbed TLS 2.7.0 ARM Mbed TLS 2.7.1 ARM Mbed TLS 2.7.2 ARM Mbed TLS 2.7.3 ARM Mbed TLS 2.7.4 ARM Mbed TLS 2.7.5 ARM Mbed TLS 2.7.6 ARM Mbed TLS 2.7.7 ARM Mbed TLS 2.7.8 ARM Mbed TLS 2.7.9 ARM Mbed TLS 2.7.10 ARM Mbed TLS 2.7.11 ARM Mbed TLS 2.7.12 ARM Mbed TLS 2.7.13 ARM Mbed TLS 2.7.14 ARM Mbed TLS 2.7.15 ARM Mbed TLS 2.7.16 ARM Mbed TLS 2.8.0 ARM Mbed TLS 2.9.0 ARM Mbed TLS 2.10.0 ARM Mbed TLS 2.11.0 ARM Mbed TLS 2.12.0 ARM Mbed TLS 2.13.0 ARM Mbed TLS 2.13.1 ARM Mbed TLS 2.14.0 ARM Mbed TLS 2.14.1 ARM Mbed TLS 2.15.0 ARM Mbed TLS 2.15.1 ARM Mbed TLS 2.16.0 ARM Mbed TLS 2.16.1 ARM Mbed TLS 2.16.2 ARM Mbed TLS 2.16.3 ARM Mbed TLS 2.16.4 ARM Mbed TLS 2.16.5 ARM Mbed TLS 2.16.6 ARM Mbed TLS 2.16.7 ARM Mbed TLS 2.17.0 ARM Mbed TLS 2.18.0 ARM Mbed TLS 2.18.1 ARM Mbed TLS 2.19.0 ARM Mbed TLS 2.19.1 ARM Mbed TLS 2.20.0 ARM Mbed TLS 2.21.0 ARM Mbed TLS 2.22.0 ARM Mbed TLS 2.23.0	137
OS	Fedoraproject Fedoraproject Fedora 31 Fedoraproject Fedora 32 Fedoraproject Fedora 33	3
OS	Debian Debian Debian Linux 10.0	1

Common Weakness Enumeration (CWE)

CWE-203 - Information Exposure Through Discrepancy

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References