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CVE-2021-3798

Date: August 23, 2022

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.

Language: C

Severity Score

Related Resources (8)

https://bugzilla.redhat.com/show_bug.cgi?id=1990591
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3798
https://nvd.nist.gov/vuln/detail/CVE-2021-3798
https://access.redhat.com/security/cve/CVE-2021-3798
https://github.com/opencryptoki/opencryptoki/commit/4e3b43c3d8844402c04a66b55c6c940f965109f0
https://github.com/opencryptoki/opencryptoki/pull/402
https://access.redhat.com/errata/RHBA-2021:3054
https://www.mend.io/vulnerability-database/CVE-2021-3798

Severity Score

Weakness Type (CWE)

Improper Certificate Validation

CWE-295

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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