Information Exposure Affecting mbedtls package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.21% (44th percentile)

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  • Snyk IDSNYK-UBUNTU2004-MBEDTLS-6209268
  • published17 Jan 2026
  • disclosed31 Jan 2024

Introduced: 31 Jan 2024

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

How to fix?

There is no fixed version for Ubuntu:20.04 mbedtls.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mbedtls package and not the mbedtls package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, as described in "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.

CVSS Base Scores

version 3.1