PT-2023-5327 · Unknown · Ansi C Opc Ua Sdk

Published 2023-09-12 · Updated 2025-08-18 · CVE-2023-28831

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions ANSI C OPC UA SDK (affected versions not specified)

Description The ANSI C OPC UA SDK contains an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

BDU:2023-05954

CVE-2023-28831

Affected Products

Ansi C Opc Ua Sdk

References · 13

• https://cert-portal.siemens.com/productcert/pdf/ssa-711309.pdf · Vendor Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-118850.pdf · Vendor Advisory
• https://cert-portal.siemens.com/productcert/html/ssa-118850.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-28831 · Security Note
• https://bdu.fstec.ru/vul/2023-05954 · Security Note
• https://osv.dev/vulnerability/CVE-2023-28831 · Vendor Advisory
• https://cert-portal.siemens.com/productcert/html/ssa-711309.html · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1701607876387807487 · Twitter Post
• https://t.me/cibsecurity/70269 · Telegram Post
• https://t.me/cveNotify/132645 · Telegram Post
• https://t.me/cvenotify/118710 · Telegram Post
• https://twitter.com/CVEnew/status/1701534371646230735 · Twitter Post
• https://twitter.com/cracbot/status/1701838177605243061 · Twitter Post