CVE-2023-40661
low-risk
Published 2023-11-06
Several memory vulnerabilities were identified within the OpenSC packages, particularly in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. To take advantage of these flaws, an attacker must have physical access to the computer system and employ a custom-crafted USB device or smart card to manipulate responses to APDUs. This manipulation can potentially allow compromise key generation, certificate loading, and other card management operations during enrollment.
Do I need to act?
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0.29% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10
Medium
PHYSICAL
/ LOW complexity
Affected Products (3)
Affected Vendors
References (19)
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-40661
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2240913
Release Notes
https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
Vendor Advisory
https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-40661
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2240913
Release Notes
https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
Vendor Advisory
https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
28
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
9/34 · Low