CVE-2021-41585 ATS stops accepting connections on FreeBSD
An attacker can cause Apache Traffic Server to stop accepting new connections, resulting in a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-41585?
CVE-2021-41585 is a high-severity denial of service vulnerability in Apache Traffic Server, published on 3 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper Input Validation vulnerability in accepting socket connections in Apache Traffic Server allows an attacker to make the server stop accepting new connections. This issue affects Apache Traffic Server 5.0.0 to 9.1.0.
Weakness: CWE-20
Which versions are affected by CVE-2021-41585?
It affects 1 product.
Products include Apache Traffic Server.
How do I fix CVE-2021-41585?
Upgrade to a fixed version.
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-2021-41585 being exploited?
There is no known exploitation of CVE-2021-41585 in the wild and no public exploit code.
Other vulnerabilities in Apache Traffic Server
Sources
Also known as GHSA-7p26-vh5r-gh69.