Improper Certificate Validation Affecting armmbed/mbedtls package, versions [,2.7.17)[2.8.0,2.16.8)[2.17.0,2.24.0)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.43% (76th percentile)

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  • Snyk IDSNYK-UNMANAGED-ARMMBEDMBEDTLS-2368692
  • published26 Jan 2022
  • disclosed19 Jul 2021
  • creditUnknown

Introduced: 19 Jul 2021

CVE-2020-36425  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade armmbed/mbedtls to version 2.7.17, 2.16.8, 2.24.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Certificate Validation. An issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.

CVSS Scores

version 3.1