CVE-2023-5992 - CVE House
Back to Database
Status published Medium CVE-2023-5992

Opensc: side-channel leaks while stripping encryption pkcs#1 padding

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-5992

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This issue was discovered by Hubert Kario (Red Hat).

References

More from Red Hat

View All →
CVE-2025-9909
Aap-gateway: improper path validation in gateway allows credential exfiltration
Medium 6.7
CVE-2025-9908
Event-driven-ansible: sensitive internal headers disclosure in aap eda event streams
Medium 6.7
CVE-2025-9907
Event-driven-ansible: event stream test mode exposes sensitive headers in aap eda
Medium 6.7
CVE-2025-9901
Libsoup: improper handling of http vary header in libsoup caching
Medium 5.9
CVE-2025-9820
Gnutls: stack-based buffer overflow in gnutls_pkcs11_token_init() function
Medium 4

Affected Vendor

Affected Software

Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 7
Vulnerable Versions:
0:0.20.0-8.el8_9, 0:0.23.0-4.el9_3

Timeline

Official Publish: January 31st, 2024
Last Modified: November 6th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Weaknesses (CWE)

CWE-203

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1213 Data from Information Repositories
Collection
T1046 Network Service Discovery
Discovery