Stack-Based Buffer Overflow in OpenSC GPK Smart Card Software Driver
CVE-2020-26571

5.5MEDIUM

Key Information:

Vendor

Opensc Project

Status
Opensc
Vendor
CVE Published:
6 October 2020

What is CVE-2020-26571?

The GPK smart card software driver in OpenSC versions prior to 0.21.0-rc1 is susceptible to a stack-based buffer overflow attack. This vulnerability occurs within the function sc_pkcs15emu_gemsafeGPK_init, potentially allowing an attacker to execute arbitrary code or cause a denial of service. It is crucial for users of OpenSC to update their software to the latest version to mitigate this risk and ensure the integrity of their smart card operations.

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20612
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/11/24/4
mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.