Medium severity · published Apr 29, 2020
CVE-2019-20792
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
6.8
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Opensc · Opensc Project
before 0.20.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20792
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20792
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
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