CVE-2022-24298 Denial of Service (DoS)
Attackers can cause denial of service in FreeOpcUa by sending multiple CloseSession requests with deleteSubscription set to False, bypassing memory limits.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-24298?
CVE-2022-24298 is a high-severity denial of service vulnerability in FreeOpcUa/freeopcua, published on 23 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
All versions of package freeopcua/freeopcua are vulnerable to Denial of Service (DoS) when bypassing the limitations for excessive memory consumption by sending multiple CloseSession requests with the deleteSubscription parameter equal to False.
Weakness: CWE-770
Which versions are affected by CVE-2022-24298?
It affects 1 product.
Products include Freeopcua Freeopcua.
How do I fix CVE-2022-24298?
No fix has been published for CVE-2022-24298 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-2022-24298 being exploited?
There is no known exploitation of CVE-2022-24298 in the wild and no public exploit code.
Sources
Also known as GHSA-3448-h4p5-g6mc.