What is CVE-2021-42577?

CVE-2021-42577 is an issue discovered in Softing OPC UA C++ SDK before version 5.70, where a malformed OPC/UA message abort packet can cause the client to crash with a NULL pointer dereference.

What is the severity of CVE-2021-42577?

CVE-2021-42577 has a severity rating of 7.5 (high).

Which software versions are affected by CVE-2021-42577?

Softing Datafeed Opc Suite (up to and including version 5.19), Softing Opc Ua C++ Software Development Kit (up to version 5.70.0), and Softing Secure Integration Server (up to and including version 1.22) are affected by CVE-2021-42577.

How does CVE-2021-42577 impact Softing OPC UA C++ SDK?

CVE-2021-42577 can cause the client to crash with a NULL pointer dereference if a malformed OPC/UA message abort packet is encountered.

Is there a fix available for CVE-2021-42577?

Yes, updating to Softing OPC UA C++ SDK version 5.70 or higher will fix the vulnerability.

Vulnerability/
CVE-2021-42577

high

7.5

CWE

476

11/3/2022

4/8/2024

CVE-2021-42577: Null Pointer Dereference

First published: Fri Mar 11 2022(Updated: )

An issue was discovered in Softing OPC UA C++ SDK before 5.70. A malformed OPC/UA message abort packet makes the client crash with a NULL pointer dereference.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Softing Datafeed Opc Suite	<=5.19
Softing Opc Ua C\+\+ Software Development Kit	<5.70.0
Softing Secure Integration Server	<=1.22

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Frequently Asked Questions

What is CVE-2021-42577?
CVE-2021-42577 is an issue discovered in Softing OPC UA C++ SDK before version 5.70, where a malformed OPC/UA message abort packet can cause the client to crash with a NULL pointer dereference.
What is the severity of CVE-2021-42577?
CVE-2021-42577 has a severity rating of 7.5 (high).
Which software versions are affected by CVE-2021-42577?
Softing Datafeed Opc Suite (up to and including version 5.19), Softing Opc Ua C++ Software Development Kit (up to version 5.70.0), and Softing Secure Integration Server (up to and including version 1.22) are affected by CVE-2021-42577.
How does CVE-2021-42577 impact Softing OPC UA C++ SDK?
CVE-2021-42577 can cause the client to crash with a NULL pointer dereference if a malformed OPC/UA message abort packet is encountered.
Is there a fix available for CVE-2021-42577?
Yes, updating to Softing OPC UA C++ SDK version 5.70 or higher will fix the vulnerability.

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collector/mitre-cve
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agent/last-modified-date
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agent/source
vendor/softing
canonical/softing datafeed opc suite
version/softing datafeed opc suite/5.19
canonical/softing opc ua c\+\+ software development kit
canonical/softing secure integration server
version/softing secure integration server/1.22

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