CVE-2022-29863: OPCFoundation.NetStandard.Opc.Ua.Core Memory Allocation With Excessive Size Vulnerability

HIGH
Advisory Identifier: GHSA-r7pq-3x6p-7jcm
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CVSS 7.5
CWE-789
Published
Advisory Summary

CVE-2022-29863 is a HIGH (CVSS 7.5) memory allocation with excessive size vulnerability (CWE-789: Memory Allocation with Excessive Size Value) affecting OPCFoundation.NetStandard.Opc.Ua.Core libraries in the NuGet ecosystem. The issue involves memory allocation with excessive size value in opcfoundation.netstandard.opc.ua.core. Remediation is available by upgrading affected packages to version 1.4.368.58.

CVE-2022-29863 at a Glance

CVE Identifier CVE-2022-29863
GHSA Identifier GHSA-r7pq-3x6p-7jcm
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-789: Memory Allocation with Excessive Size Value
Affected Product OPCFoundation.NetStandard.Opc.Ua.Core
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-29863

To remediate this vulnerability, upgrade all affected OPCFoundation.NetStandard.Opc.Ua.Core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

OPCFoundation.NetStandard.Opc.Ua.Core fixed: 1.4.368.58 
Upgrade OPCFoundation.NetStandard.Opc.Ua.Core to 1.4.368.58
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for OPCFoundation.NetStandard.Opc.Ua.Core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-29863, inspect your project dependencies for OPCFoundation.NetStandard.Opc.Ua.Core:

inspect dependencies for OPCFoundation.NetStandard.Opc.Ua.Core

Analyze the terminal output to locate any version of OPCFoundation.NetStandard.Opc.Ua.Core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.4.368.58), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-789: Memory Allocation with Excessive Size Value, where the product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. In OPCFoundation.NetStandard.Opc.Ua.Core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was discovered in the OPC UA .NET Standard Stack that allows a malicious client to cause a server to trigger an out of memory exception with a carefully crafted message.

CVE-2022-29863 Affected OPCFoundation.NetStandard.Opc.Ua.Core Versions

1 component(s)
Fixed Versions:
1.4.368.58
Product / Package Ecosystem Affected Versions Fixed Version
OPCFoundation.NetStandard.Opc.Ua.Core
nuget/OPCFoundation.NetStandard.Opc.Ua.Core
NuGet
< 1.4.368.58
1.4.368.58

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-r7pq-3x6p-7jcm
NVD — CVE-2022-29863 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-29863
OPCFoundation.NetStandard.Opc.Ua.Core Security Information SECURITY
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf
OPCFoundation.NetStandard.Opc.Ua.Core Source Repository REPOSITORY
https://github.com/OPCFoundation/UA-.NETStandard

Frequently Asked Questions

What is CVE-2022-29863?
CVE-2022-29863 is a security vulnerability in OPCFoundation.NetStandard.Opc.Ua.Core involving Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core under CWE-789: Memory Allocation with Excessive Size Value.
Which OPCFoundation.NetStandard.Opc.Ua.Core versions are affected?
Affected versions include releases prior to 1.4.368.58 across affected packages: OPCFoundation.NetStandard.Opc.Ua.Core.
What version fixes CVE-2022-29863?
Upgrading to 1.4.368.58 (or the latest patched release for your respective branch) resolves the vulnerability.
Is OPCFoundation.NetStandard.Opc.Ua.Core affected?
Yes, OPCFoundation.NetStandard.Opc.Ua.Core is affected in releases prior to 1.4.368.58. Upgrade your dependency to 1.4.368.58 or later.
What is the CVSS score of CVE-2022-29863?
CVE-2022-29863 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-29863?
CVE-2022-29863 is classified under CWE-789: Memory Allocation with Excessive Size Value (The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.).
How can I check NuGet dependencies for CVE-2022-29863?
Run the dependency tree command: 'inspect dependencies for OPCFoundation.NetStandard.Opc.Ua.Core'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r7pq-3x6p-7jcm",
  "modified" : "2022-09-01T20:12:37Z",
  "published" : "2022-06-17T21:45:15Z",
  "aliases" : [ "CVE-2022-29863" ],
  "summary" : "Memory Allocation with Excessive Size Value in OPCFoundation.NetStandard.Opc.Ua.Core",
  "details" : "A vulnerability was discovered in the OPC UA .NET Standard Stack that allows a malicious client to cause a server to trigger an out of memory exception with a carefully crafted message.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "OPCFoundation.NetStandard.Opc.Ua.Core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.368.58"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.4.368.53"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-r7pq-3x6p-7jcm"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-29863"
  }, {
    "type" : "WEB",
    "url" : "https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OPCFoundation/UA-.NETStandard"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-789" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-17T21:45:15Z",
    "nvd_published_at" : "2022-06-16T18:15:00Z"
  }
}