Stack Overflow Vulnerability in OpenSC Smart Card Middleware by OpenSC
CVE-2021-34193

7.5HIGH

Key Information:

Vendor

Opensc Project

Status
Opensc
Vendor
CVE Published:
22 August 2023

What is CVE-2021-34193?

The vulnerability in OpenSC smart card middleware prior to version 0.23 allows remote attackers to exploit crafted responses to Application Protocol Data Units (APDUs). This stack overflow can lead to unexpected behavior or potentially allow execution of arbitrary code, which can compromise the security of applications utilizing this middleware. It highlights the importance of diligence in software updates to mitigate such threats.

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.