CVE-2018-25021 Denial of service in n/a
A remote attacker can exhaust system memory via the toxcore TCP server module, causing 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-2018-25021?
CVE-2018-25021 is a high-severity denial of service vulnerability in n/a, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The TCP Server module in toxcore before 0.2.8 doesn't free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system's memory, causing a denial of service (DoS).
Weakness: CWE-404
Which versions are affected by CVE-2018-25021?
It affects 1 product.
Products include Toktok Toxcore.
How do I fix CVE-2018-25021?
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-2018-25021 being exploited?
There is no known exploitation of CVE-2018-25021 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2018-25021, GHSA-p3p2-9rqf-r8j8.