CVE-2022-25888 Denial of Service (DoS)
An attacker can cause a denial of service by sending unlimited large chunks without closing them, affecting the opcua library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-25888?
CVE-2022-25888 is a high-severity denial of service vulnerability in opcua, published on 23 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The package opcua from 0.0.0 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.
Weakness: CWE-770
Which versions are affected by CVE-2022-25888?
2 open source packages ship an affected version, including opcua. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
opcua crates.io | All versions | 0.11.0 |
opcua crates.io | All versions | 0.11.0 |
Products include Opcua Project Opcua.
How do I fix CVE-2022-25888?
Upgrade opcua to 0.11.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-25888 being exploited?
There is no known exploitation of CVE-2022-25888 in the wild and no public exploit code.
Other vulnerabilities in opcua
Sources
Also known as GHSA-8mx2-gqx9-rm7f.