A flaw was found in libtpms in versions before 0.8.2. The commonly used integration of libtpms with OpenSSL contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-26772 A flaw was found in libtpms in versions before 0.8.2. The commonly used integration of libtpms with OpenSSL contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00015}

epss

{'score': 0.00035}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T16:53:17.575Z

Reserved: 2021-03-16T00:00:00

Link: CVE-2021-3446

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-25T19:15:14.703

Modified: 2024-11-21T06:21:32.570

Link: CVE-2021-3446

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-01T00:00:00Z

Links: CVE-2021-3446 - Bugzilla

cve-icon OpenCVE Enrichment

No data.