CVE-2019-20792

low-risk
Published 2020-04-29

OpenSC before 0.20.0 has a double free in coolkey_free_private_data because coolkey_add_object in libopensc/card-coolkey.c lacks a uniqueness check.

Do I need to act?

-
0.17% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10 Medium
PHYSICAL / LOW complexity

Affected Products (1)

Affected Vendors

Opensc Project

References (6)

Exploit https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19208
Patch https://github.com/OpenSC/OpenSC/commit/c246f6f69a749d4f68626b40795a4f69168008f4
Release Notes https://github.com/OpenSC/OpenSC/compare/0.19.0...0.20.0
Exploit https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=19208
Patch https://github.com/OpenSC/OpenSC/commit/c246f6f69a749d4f68626b40795a4f69168008f4
Release Notes https://github.com/OpenSC/OpenSC/compare/0.19.0...0.20.0
28
/ 100
low-risk
Severity 22/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal