CVE-2022-29866 Uncontrolled Resource Consumption in OPCFoundation.NetStandard.Opc.Ua.Core

What is CVE-2022-29866?

CVE-2022-29866 is a high-severity denial of service vulnerability in n/a, published on 16 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OPC UA .NET Standard Stack 1.04.368 allows a remote attacker to exhaust the memory resources of a server via a crafted request that triggers Uncontrolled Resource Consumption.

Weakness: CWE-400

Which versions are affected by CVE-2022-29866?

2 open source packages ship an affected version, including OPCFoundation.NetStandard.Opc.Ua.Core. It affects 1 product.

Products include Opcfoundation Ua .Net Standard Stack.

How do I fix CVE-2022-29866?

Upgrade OPCFoundation.NetStandard.Opc.Ua.Core to 1.4.368.58 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-29866 being exploited?

There is no known exploitation of CVE-2022-29866 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2024-42512 Security Update for the OPC UA .NET Standard Stack High 8.6
• CVE-2022-33916 Exposure of Sensitive Information in OPCFoundation.NetStandard.Opc.Ua.Server High 7.5
• CVE-2022-29862 Security Update for the OPC UA .NET Standard Stack High 7.5
• CVE-2022-29863 Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core High 7.5
• CVE-2022-29864 Uncontrolled Resource Consumption in OPCFoundation.NetStandard.Opc.Ua.Core High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6fp8-cxc9-4fr9.