CVE-2021-30047 Denial of service in n/a
Attackers can cause a denial of service in VSFTPD by exhausting the limited number of allowed connections.
- 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-2021-30047?
CVE-2021-30047 is a high-severity denial of service vulnerability in n/a, published on 22 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
VSFTPD 3.0.3 allows attackers to cause a denial of service due to limited number of connections allowed.
Which versions are affected by CVE-2021-30047?
It affects 1 product.
Products include Vsftpd Project Vsftpd.
How do I fix CVE-2021-30047?
No fix has been published for CVE-2021-30047 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-2021-30047 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-30047 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-p8mp-mm84-7pqr.