CVE-2023-5992: Opensc Project Opensc

Medium severity, CVSS 5.9. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.

Affected products

• Opensc Project Opensc: before 0.25.0 (fixed in 0.25.0)
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Red Hat Enterprise Linux Eus: version 9.4 only
• Red Hat Enterprise Linux For Arm 64: version 8.0_aarch64 only; version 9.0_aarch64 only
• Red Hat Enterprise Linux For Arm 64 Eus: version 9.4_aarch64 only
• Red Hat Enterprise Linux For IBM Z Systems: version 8.0_s390x only; version 9.0_s390x only
• Red Hat Enterprise Linux For IBM Z Systems Eus: version 9.4_s390x only
• Red Hat Enterprise Linux For Power Little Endian: version 9.0_ppc64le only
• Red Hat Enterprise Linux For Power Little Endian Eus: version 9.4_ppc64le only
• Red Hat Enterprise Linux Server Aus: version 9.4 only
• Red Hat Enterprise Linux Server For Power Little Endian Update Services For SAP Solutions: version 9.2 only; version 9.4_ppc64le only

Published 2024-01-31. Last modified 2026-06-17.