Information Exposure Affecting mbedtls3 package, versions <2.16.4-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.34% (27th percentile)

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  • Snyk IDSNYK-ALPINE324-MBEDTLS3-17301479
  • published11 Jun 2026
  • disclosed23 Jan 2020

Introduced: 23 Jan 2020

CVE-2019-18222  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Alpine:3.24 mbedtls3 to version 2.16.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mbedtls3 package and not the mbedtls3 package as distributed by Alpine. See How to fix? for Alpine:3.24 relevant fixed versions and status.

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.

CVSS Base Scores

version 3.1