CVE-2023-4535

LOW EPSS 36.9%
Published Nov 6, 20232y ago · Modified Jun 17, 20261w ago
3.8 CVSS 3.1
Low
Find Similar
Published Nov 6, 2023 2y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
3.8
Exploitability
0.4
Impact
3.4
Vector string
CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Attack Vector Physical
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Low
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
36.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 6

VendorProductVersionRange
opensc_projectopensc0.23.0any
opensc_projectopensc0.23.0any
opensc_projectopensc0.23.0any
fedoraprojectfedora38any
fedoraprojectfedora39any
redhatenterprise_linux9.0any

References 9

  • access.redhat.com https://access.redhat.com/errata/RHSA-2023:7879
    Third Party Advisory
  • access.redhat.com https://access.redhat.com/security/cve/CVE-2023-4535
    Third Party Advisory
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2240914
    Issue Tracking
  • github.com https://github.com/OpenSC/OpenSC/commit/f1993dc4e0b33050b8f72a3558ee88b24c4063b2
    Patch
  • github.com https://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
    Issue TrackingPatch
  • github.com https://github.com/OpenSC/OpenSC/releases/tag/0.24.0-rc1
    Release Notes
  • github.com https://github.com/OpenSC/OpenSC/wiki/OpenSC-security-advisories
    Vendor Advisory
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3CPQOMCDWFRBMEFR5VK4N5MMXXU42ODE/
  • lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLYEFIBBA37TK3UNMZN5NOJ7IWCIXLQP/

Remediation

  • github.com https://github.com/OpenSC/OpenSC/commit/f1993dc4e0b33050b8f72a3558ee88b24c4063b2
    Patch
  • github.com https://github.com/OpenSC/OpenSC/issues/2792#issuecomment-1674806651
    Issue TrackingPatch