Description
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; redhat: enterprise linux; redhat: enterprise linux eus; redhat: enterprise linux for arm 64; redhat: enterprise linux for arm 64 eus; redhat: enterprise linux for ibm z systems; redhat: enterprise linux for ibm z systems eus; redhat: enterprise linux for power little endian; redhat: enterprise linux for power little endian eus; redhat: enterprise linux server aus; redhat: enterprise linux server for power little endian update services for sap solutions
References10
- github.com/OpenSC/OpenSC/wiki/CVE-2023-5992 Vendor Advisory
- github.com/OpenSC/OpenSC/wiki/CVE-2023-5992 Vendor Advisory
- www.usenix.org/system/files/usenixsecurity24-shagam.pdf ExploitTechnical Description
- access.redhat.com/errata/RHSA-2024:0966 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:0967 Third Party Advisory
- access.redhat.com/security/cve/CVE-2023-5992 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2248685 Issue Tracking
- access.redhat.com/errata/RHSA-2024:0966 Third Party Advisory
- access.redhat.com/errata/RHSA-2024:0967 Third Party Advisory
- access.redhat.com/security/cve/CVE-2023-5992 Third Party Advisory
Metrics
- CVSS 3.1
-
5.9
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 67 · as of 5 November 2026
- CWE
- CWE-203
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.