CVE-2020-24337 Denial of service in n/a
An attacker can cause a denial of service in picoTCP by sending a TCP packet with an unsupported zero-length option, triggering an infinite loop.
- 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-2020-24337?
CVE-2020-24337 is a high-severity denial of service vulnerability in n/a, published on 11 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. When an unsupported TCP option with zero length is provided in an incoming TCP packet, it is possible to cause a Denial-of-Service by achieving an infinite loop in the code that parses TCP options, aka tcp_parse_options() in pico_tcp.c.
Weakness: CWE-835
Which versions are affected by CVE-2020-24337?
It affects 2 products.
Products include Altran Picotcp, Altran Picotcp-Ng.
How do I fix CVE-2020-24337?
No fix has been published for CVE-2020-24337 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-2020-24337 being exploited?
There is no known exploitation of CVE-2020-24337 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-m89x-hf4g-3j36.