CVE-2023-4535 MEDIUM

CVE-2023-4535: Opensc: out-of-bounds read in myeid driver handling encryption using symmetric keys

Vendor Red Hat
Product Red Hat Enterprise Linux 7
Weakness CWE-125
Published November 6, 2023
Last update November 21, 2025

CVSS base score

4.5/10
Attack vector Physical
Attack complexity High
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

An out-of-bounds read vulnerability was found in OpenSC packages within the MyEID driver when handling symmetric key encryption. Exploiting this flaw requires an attacker to have physical access to the computer and a specially crafted USB device or smart card. This flaw allows the attacker to manipulate APDU responses and potentially gain unauthorized access to sensitive data, compromising the system's security.

Key dates

02Disclosure timeline

November 6, 2023 CVE published
November 21, 2025 Record updated