Observable Timing Discrepancy Affecting armmbed/mbedtls package, versions [,2.28.7)[3.0.0,3.5.2)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.05% (22nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-ARMMBEDMBEDTLS-6245048
  • published13 Feb 2024
  • disclosed31 Jan 2024
  • creditHubert Kario

Introduced: 31 Jan 2024

CVE-2024-23170  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade armmbed/mbedtls to version 2.28.7, 3.5.2 or higher.

Overview

Affected versions of this package are vulnerable to Observable Timing Discrepancy during in RSA private operations. An attacker can recover the plaintext by sending a large number of messages for decryption, as described in the "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.

CVSS Scores

version 3.1