CVE-2021-42075 Denial of service in n/a
An unauthenticated remote attacker can cause file descriptor exhaustion in the Barrier server, leading to denial of service.
- 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-2021-42075?
CVE-2021-42075 is a high-severity denial of service vulnerability in n/a, published on 8 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Barrier before 2.3.4. The barriers component (aka the server-side implementation of Barrier) does not correctly close file descriptors for established TCP connections. An unauthenticated remote attacker can thus cause file descriptor exhaustion in the server process, leading to denial of service.
Weakness: CWE-772
Which versions are affected by CVE-2021-42075?
It affects 1 product.
Products include Barrier Project Barrier.
How do I fix CVE-2021-42075?
No fix has been published for CVE-2021-42075 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-2021-42075 being exploited?
There is no known exploitation of CVE-2021-42075 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-c58c-q645-27mc.