CVE-2021-42262 Denial of service in n/a
An attacker can cause a denial of service in the OPC UA client by sending a malformed XML element that triggers an out-of-memory crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42262?
CVE-2021-42262 is a medium-severity denial of service vulnerability in n/a, published on 11 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Softing OPC UA C++ SDK before 5.70. An invalid XML element in the type dictionary makes the OPC/UA client crash due to an out-of-memory condition.
Weakness: CWE-119
Which versions are affected by CVE-2021-42262?
It affects 3 products.
Products include Softing Datafeed Opc Suite, Softing Opc Ua C\+\+ Software Development Kit, Softing Secure Integration Server.
How do I fix CVE-2021-42262?
No fix has been published for CVE-2021-42262 yet. Limit exposure of the affected software until one is available.
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-2021-42262 being exploited?
There is no known exploitation of CVE-2021-42262 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-p9vm-xg3v-45rm.