CVE-2020-36423

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Arm Mbed TLS before 2.23.0. A remote attacker can recover plaintext because a certain Lucky 13 countermeasure doesn't properly consider the case of a hardware accelerator.

Se ha detectado un problema en Arm Mbed TLS versiones anteriores a 2.23.0. Un atacante remoto puede recuperar el texto plano porque una determinada contramedida de Lucky 13 no considera apropiadamente el caso de un acelerador de hardware

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-07-19 CVE Reserved
2021-07-19 CVE Published
2024-04-03 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-319: Cleartext Transmission of Sensitive Information

CAPEC

References (4)

URL	Tag	Source
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7	Release Notes
https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0	Release Notes
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://bugs.gentoo.org/730752	2023-01-11

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Arm Search vendor "Arm"		Mbed Tls Search vendor "Arm" for product "Mbed Tls"				< 2.16.7 Search vendor "Arm" for product "Mbed Tls" and version " < 2.16.7"		-		Affected
Arm Search vendor "Arm"		Mbed Tls Search vendor "Arm" for product "Mbed Tls"				>= 2.17.0 < 2.23.0 Search vendor "Arm" for product "Mbed Tls" and version " >= 2.17.0 < 2.23.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected