Home/CVE/A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant
CVE

CVE-2023-5992

A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant

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.

MEDIUM · CVSS 5.6 EPSS 0.00257
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-203Observable Discrepancy
CWE-203Observable Discrepancy
▤

Affected Products & Versions

11
opensc project opensc< 0.25.0
redhat enterprise linuxall versions
redhat enterprise linux eusall versions
redhat enterprise linux for arm 64all versions
redhat enterprise linux for arm 64 eusall versions
redhat enterprise linux for ibm z systemsall versions
redhat enterprise linux for ibm z systems eusall versions
redhat enterprise linux for power little endianall versions
⚠

Public Exploits & PoCs

1
pocwww.usenix.org · usenixsecurity24-shagam.pdfwww.usenix.org
▣

Scoring & Timeline

5.6
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Jan 2024 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
suse-csafSUSE-SU-2025:20671-1
suse-csafSUSE-SU-2025:02754-1
suse-csafSUSE-SU-2025:20530-1
usnUSN-7346-1
msrcCVE-2023-5992
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2023-5992Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2248685Issue Tracking
https://github.com/OpenSC/OpenSC/wiki/CVE-2023-5992Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OWIZ5ZLO5ECYPLSTESCF7I7PQO5X6ZSU/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJI2FWLY24EOPALQ43YPQEZMEP3APPPI/
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