CVE-2019-9705 Denial of service in n/a
Local attackers can cause denial of service via memory consumption by submitting large crontab files to Vixie Cron.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-9705?
CVE-2019-9705 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 12 Mar 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (memory consumption) via a large crontab file because an unlimited number of lines is accepted.
Weakness: CWE-770
Which versions are affected by CVE-2019-9705?
It affects 3 products.
Products include Cron Project Cron, Debian Debian Linux, Fedoraproject Fedora.
How do I fix CVE-2019-9705?
Apply the vendor's patch.
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-2019-9705 being exploited?
There is no known exploitation of CVE-2019-9705 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-9705, GHSA-3rh6-vqr9-vpx5, UBUNTU-CVE-2019-9705.