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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6.7$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in OpenSC up to 0.19.x. Impacted is the function asn1_decode_entry of the file libopensc/asn1.c. The manipulation results in memory corruption. This vulnerability is known as CVE-2019-15946. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

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. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. 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 lists.fedoraproject.org. 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 VDB-141299. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 6.4
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
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-rc1
Patch: github.com

Timelineinfo

09/05/2019 🔍
09/05/2019 +0 days 🔍
09/06/2019 +1 days 🔍
12/13/2023 +1559 days 🔍

Sourcesinfo

Product: github.com

Advisory: a3fc7693f3a035a8a7921cffb98432944bb42740
Status: Not defined

CVE: CVE-2019-15946 (🔍)
GCVE (CVE): GCVE-0-2019-15946
GCVE (VulDB): GCVE-100-141300
See also: 🔍

Entryinfo

Created: 09/06/2019 11:06
Updated: 12/13/2023 09:59
Changes: 09/06/2019 11:06 (56), 08/13/2020 09:58 (1), 12/13/2023 09:57 (5), 12/13/2023 09:59 (1)
Complete: 🔍
Cache ID: 216::103

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