Buffer Over-read Vulnerability in Arm Mbed TLS
CVE-2020-36426

7.5HIGH

Key Information:

Vendor

Arm
Status
Mbed Tls
Vendor
CVE Published:
19 July 2021

What is CVE-2020-36426?

A buffer over-read vulnerability was identified in Arm Mbed TLS versions prior to 2.24.0, specifically affecting the mbedtls_x509_crl_parse_der function. This flaw could potentially lead to unauthorized access or exposure of sensitive data. It is crucial for users and developers relying on this cryptographic library to apply the latest updates and mitigate associated risks.

References

https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.