Resource exhaustion in Asneg Opc Ua Stack

CVE-2022-24381

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.

EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-24381?
CVE-2022-24381 is a high-severity vulnerability in Asneg Opc Ua Stack, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2022-08-23.
How severe is CVE-2022-24381?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-24381 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.