OpenSC up to 2.19.x libopensc/card-coolkey.c coolkey_free_private_data double free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in OpenSC up to 2.19.x. This affects the function coolkey_free_private_data of the file libopensc/card-coolkey.c. The manipulation leads to double free. This vulnerability is uniquely identified as CVE-2019-20792. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenSC up to 2.19.x. It has been rated as critical. This issue affects the function coolkey_free_private_data of the file libopensc/card-coolkey.c. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed 04/29/2020. The identification of this vulnerability is CVE-2019-20792 since 04/29/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 0.20.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenSC 0.20.0
Patch: github.com

Timelineinfo

04/29/2020 🔍
04/29/2020 +0 days 🔍
04/29/2020 +0 days 🔍
06/04/2024 +1497 days 🔍

Sourcesinfo

Product: github.com

Advisory: c246f6f69a749d4f68626b40795a4f69168008f4
Status: Not defined

CVE: CVE-2019-20792 (🔍)
GCVE (CVE): GCVE-0-2019-20792
GCVE (VulDB): GCVE-100-154547

Entryinfo

Created: 04/29/2020 08:42
Updated: 06/04/2024 09:27
Changes: 04/29/2020 08:42 (37), 04/29/2020 08:47 (17), 06/04/2024 09:27 (20)
Complete: 🔍
Cache ID: 216::103

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