CVE-2021-42023 — MEDIUM (6.5)

Vulnerability Description

A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built-in private keys that are required to decrypt electronic intellectual property (IP) data in accordance with the IEEE 1735 recommended practice. This could allow a sophisticated attacker to discover the keys, bypassing the protection intended by the IEEE 1735 recommended practice.

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Siemens	Modelsim	All versions
Siemens	Questa	All versions

Related Weaknesses (CWE)

CWE-522

References

https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdfPatchVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-400332.pdfPatchVendor Advisory

FAQ

What is CVE-2021-42023?

CVE-2021-42023 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A vulnerability has been identified in ModelSim Simulation (All versions), Questa Simulation (All versions). The RSA white-box implementation in affected applications insufficiently protects the built...

How severe is CVE-2021-42023?

CVE-2021-42023 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-42023?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Modelsim, Siemens Questa.