CVE-2023-4535
Opensc: out-of-bounds read in myeid driver handling encryption using symmetric keys
- State
- Published
- Severity
- 4.5 Medium
- Published
- Nov 6, 2023
- Updated
- Nov 21, 2025
- Reserved
- Aug 25, 2023
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.5 Medium | CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L | redhat |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 9Red Hat |
|
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat |
References
- RHSA-2023:7879vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-4535vdb-entry
- RHBZ#2240914issue-tracking
- 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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3CPQOMCDWFRBMEFR5VK4N5MMXXU42ODE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLYEFIBBA37TK3UNMZN5NOJ7IWCIXLQP/
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