CVE Database›Document archive›CVE-2021-3798

CVE-2021-3798

openCryptoki: Soft token does not check if an EC key is valid

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Severity

Moderate

Red Hat Product Security

5.1

CVSS 3.1

Review impact separately from score.

Published · May 18, 2021

Updated · November 22, 2025

Description

A flaw was found in openCryptoki. The openCryptoki Soft token does not check if an EC key is valid when an EC key is created via C_CreateObject, nor when C_DeriveKey is used with ECDH public data. This may allow a malicious user to extract the private key by performing an invalid curve attack.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor