CVE-2023-4535
low-risk
Published 2023-11-06
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.
Do I need to act?
-
0.23% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.5/10
Medium
PHYSICAL
/ HIGH complexity
Affected Vendors
References (16)
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7879
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4535
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2240914
Release Notes
https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
Vendor Advisory
https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7879
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4535
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2240914
Release Notes
https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
Vendor Advisory
https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
26
/ 100
low-risk
Severity
12/34 · Low
Exploitability
1/34 · Minimal
Exposure
13/34 · Low