OPC Foundation UA .NET Standard/UA .NET Legacy prior 1.4.365.48 Recursion stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in OPC Foundation UA .NET Standard and UA .NET Legacy. It has been declared as critical. Affected by this issue is some unknown functionality of the component Recursion Handler. The manipulation results in stack-based overflow. This vulnerability is known as CVE-2021-27432. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in OPC Foundation UA .NET Standard and UA .NET Legacy. Affected is some unknown processing of the component Recursion Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as 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). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 05/21/2021 as icsa-21-133-03. The advisory is shared for download at us-cert.cisa.gov. This vulnerability is traded as CVE-2021-27432. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.4.365.48 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: UA .NET Standard/UA .NET Legacy 1.4.365.48

Timelineinfo

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

Sourcesinfo

Advisory: icsa-21-133-03
Status: Confirmed

CVE: CVE-2021-27432 (🔍)
GCVE (CVE): GCVE-0-2021-27432
GCVE (VulDB): GCVE-100-175440

Entryinfo

Created: 05/21/2021 07:48
Updated: 05/23/2021 10:14
Changes: 05/21/2021 07:48 (38), 05/23/2021 10:14 (5)
Complete: 🔍
Cache ID: 216::103

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