OpenSC up to 0.19.x libopensc/asn1.c asn1_decode_entry memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical has been found in OpenSC up to 0.19.x. Affected is the function asn1_decode_entry of the file libopensc/asn1.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry in libopensc/asn1.c.

The weakness was published 09/05/2019 (Website). The advisory is shared for download at This vulnerability is traded as CVE-2019-15946 since 09/05/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 0.20.0-rc1 eliminates this vulnerability.

Similar entry is available at 141299.



CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.4
NVD Vector: 🔍



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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfoedit

Threat: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSC 0.20.0-rc1


09/05/2019 🔍
09/05/2019 +0 days 🔍
09/06/2019 +1 days 🔍
08/13/2020 +342 days 🔍


Status: Not defined

CVE: CVE-2019-15946 (🔍)
See also: 🔍


Created: 09/06/2019 11:06 AM
Updated: 08/13/2020 09:58 AM
Changes: (1) advisory_url
Complete: 🔍


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