OPC Foundation OPC UA Client/Server SDK Bundle up to 3.0.7 Recursion stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in OPC Foundation OPC UA Client and Server SDK Bundle up to 3.0.7. It has been rated as critical. This affects an unknown part of the component Recursion Handler. This manipulation causes stack-based overflow. This vulnerability is handled as CVE-2021-27434. There is not any exploit available.

Detailsinfo

A vulnerability has been found in OPC Foundation OPC UA Client and Server SDK Bundle up to 3.0.7 and classified as critical. Affected by this vulnerability is an unknown function of the component Recursion Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 05/21/2021 as icsa-21-133-04. The advisory is shared at us-cert.cisa.gov. This vulnerability is known as CVE-2021-27434. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/19/2021 🔍
05/21/2021 +90 days 🔍
05/21/2021 +0 days 🔍
05/23/2021 +2 days 🔍

Sourcesinfo

Advisory: icsa-21-133-04
Status: Not defined

CVE: CVE-2021-27434 (🔍)
GCVE (CVE): GCVE-0-2021-27434
GCVE (VulDB): GCVE-100-175441

Entryinfo

Created: 05/21/2021 07:48
Updated: 05/23/2021 10:19
Changes: 05/21/2021 07:48 (37), 05/23/2021 10:19 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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