CVE-2023-40661: opensc_project opensc

Vulnerability summary

CVE-2023-40661 is a medium (CVSS 6.4) vulnerability in opensc_project opensc. EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.4% of scored vulnerabilities.

Timeline

1. 06-11-2023
   PublishedVulnerability first disclosed.
2. 06-11-2025
   Last modifiedVulnerability information updated.

Description

Several memory vulnerabilities were identified within the OpenSC packages, particularly in the card enrollment process using pkcs15-init when a user or administrator enrolls cards. To take advantage of these flaws, an attacker must have physical access to the computer system and employ a custom-crafted USB device or smart card to manipulate responses to APDUs. This manipulation can potentially allow compromise key generation, certificate loading, and other card management operations during enrollment.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.