CVE-2021-38387 Denial of service in n/a
A Telnet server flaw in Contiki causes clients to enter infinite loops, leading to excessive CPU consumption and 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-2021-38387?
CVE-2021-38387 is a high-severity denial of service vulnerability in n/a, published on 10 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Contiki 3.0, a Telnet server that silently quits (before disconnection with clients) leads to connected clients entering an infinite loop and waiting forever, which may cause excessive CPU consumption.
Weakness: CWE-835
Which versions are affected by CVE-2021-38387?
It affects 1 product.
Products include Contiki-Os Contiki.
How do I fix CVE-2021-38387?
No fix has been published for CVE-2021-38387 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-2021-38387 being exploited?
There is no known exploitation of CVE-2021-38387 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-mh86-qhjh-fvr5.