Information Disclosure Vulnerability in Arm Mbed TLS Software
CVE-2020-36423

7.5HIGH

Key Information:

Vendor

Arm
Status
Mbed Tls
Vendor
CVE Published:
19 July 2021

What is CVE-2020-36423?

A vulnerability in Arm Mbed TLS prior to version 2.23.0 allows remote attackers to recover plaintext data. This issue arises from improper handling of a specific scenario in the Lucky 13 countermeasure within the context of a hardware accelerator, potentially exposing sensitive information.

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References

https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7
https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0
https://bugs.gentoo.org/730752

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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