Erroneously using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, in Oberon microsystems AG’s Oberon PSA Crypto library in all versions up to 1.5.1, results in deterministic RSA and thus in a loss of confidentiality for guessable messages, recognition of repeated messages, and loss of security proofs.
History

Fri, 29 Aug 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 29 Aug 2025 09:30:00 +0000

Type Values Removed Values Added
Description Erroneously using an all-zero seed for RSA-OEAP padding instead of the generated random bytes, in Oberon microsystems AG’s Oberon PSA Crypto library in all versions up to 1.5.1, results in deterministic RSA and thus in a loss of confidentiality for guessable messages, recognition of repeated messages, and loss of security proofs.
Title Insecure RSA-OAEP implementation with all-zero seed for padding in Oberon PSA Crypto
Weaknesses CWE-780
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N/RE:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: NCSC.ch

Published:

Updated: 2025-08-29T13:45:42.363Z

Reserved: 2025-08-15T14:58:36.635Z

Link: CVE-2025-9071

cve-icon Vulnrichment

Updated: 2025-08-29T13:45:33.657Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-29T10:15:33.020

Modified: 2025-08-29T16:24:29.730

Link: CVE-2025-9071

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.