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

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.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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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 (🔍)

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: 🔍

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