PT-2022-19885 · Unknown · Opc Ua .Net Standard Stack

Published 2022-06-16 · Updated 2022-06-27 · CVE-2022-29863

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions OPC UA .NET Standard Stack version 1.04.368

Description A remote attacker can cause a crash via a crafted message that triggers excessive memory allocation, leading to an out of memory exception. This issue allows a malicious client to exploit the server with a carefully crafted message.

Recommendations For OPC UA .NET Standard Stack version 1.04.368, consider implementing input validation to prevent excessive memory allocation from crafted messages as a temporary workaround until a patch is available. Restrict access to the server to minimize the risk of exploitation.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-789

CWE-770

Related Identifiers

CVE-2022-29863

GHSA-R7PQ-3X6P-7JCM

Affected Products

Opc Ua .Net Standard Stack

References · 8

• https://osv.dev/vulnerability/GHSA-r7pq-3x6p-7jcm · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-29863 · Security Note
• https://osv.dev/vulnerability/CVE-2022-29863 · Vendor Advisory
• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2022-29863.pdf · Vendor Advisory
• https://opcfoundation.org/security · Vendor Advisory
• https://github.com/OPCFoundation/UA-.NETStandard · Note
• https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-r7pq-3x6p-7jcm · Note
• https://t.me/cvenotify/31747 · Telegram Post