CVE-2016-6244 Denial of service in n/a
Remote attackers can cause a system panic in the OpenBSD kernel by sending a negative time value to the sys_thrsigdivert function.
- 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-2016-6244?
CVE-2016-6244 is a high-severity denial of service vulnerability in Openbsd Openbsd, published on 7 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The sys_thrsigdivert function in kern/kern_sig.c in the OpenBSD kernel 5.9 allows remote attackers to cause a denial of service (panic) via a negative "ts.tv_sec" value.
Weakness: CWE-20
Which versions are affected by CVE-2016-6244?
It affects 1 product.
Products include Openbsd Openbsd.
How do I fix CVE-2016-6244?
No fix has been published for CVE-2016-6244 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-2016-6244 being exploited?
There is no known exploitation of CVE-2016-6244 in the wild and no public exploit code.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-38xh-g58w-f6vc.