What’s Vulnerable › Vulnerabilities
CVE-2023-4535: Opensc: out-of-bounds read in myeid driver handling encryption using symmetric keys
- Severity: low (CVSS 3.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-11-06 · updated 2026-06-17
- Weakness: CWE-125
Description
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.
Affected products
- Fedoraproject Fedora: 38, 39
- OpenSC: 0.23.0, 0.23.0-rc1, 0.23.0-rc2
- Red Hat Enterprise Linux: 9.0
References
- https://access.redhat.com/errata/RHSA-2023:7879
- https://access.redhat.com/security/cve/CVE-2023-4535
- https://bugzilla.redhat.com/show_bug.cgi?id=2240914
- https://github.com/OpenSC/OpenSC/commit/f1993dc4e0b33050b8f72a3558ee88b24c4063b2
- https://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
- https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
- https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
- https://access.redhat.com/errata/RHSA-2023:7879
- https://access.redhat.com/security/cve/CVE-2023-4535
- https://bugzilla.redhat.com/show_bug.cgi?id=2240914
- https://github.com/OpenSC/OpenSC/commit/f1993dc4e0b33050b8f72a3558ee88b24c4063b2
- https://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
Get alerted when CVE-2023-4535 or the next vulnerability affects your stack