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CVE-2020-36423

Date: July 18, 2021

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.

Language: C

Severity Score

Related Resources (7)

https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
https://security-tracker.debian.org/tracker/CVE-2020-36423
https://bugs.gentoo.org/730752
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7
https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0
https://nvd.nist.gov/vuln/detail/CVE-2020-36423
https://www.mend.io/vulnerability-database/CVE-2020-36423

Severity Score

Weakness Type (CWE)

Cleartext Transmission of Sensitive Information

CWE-319

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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