Information Exposure Affecting mbedtls2 package, versions <2.16.4-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-ALPINE320-MBEDTLS2-7012819
  • published23 May 2024
  • 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:3.20 mbedtls2 to version 2.16.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mbedtls2 package and not the mbedtls2 package as distributed by Alpine. See How to fix? for Alpine:3.20 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 Scores

version 3.1