CVE-2019-9706 Use after free in n/a
Local users can crash the Vixie Cron daemon via a use-after-free error, causing a denial of service.
- 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-2019-9706?
CVE-2019-9706 is a medium-severity use after free 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 (use-after-free and daemon crash) because of a force_rescan_user error.
Weakness: CWE-416
Which versions are affected by CVE-2019-9706?
It affects 2 products.
Products include Debian Cron, Debian Debian Linux.
How do I fix CVE-2019-9706?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2019-9706 being exploited?
There is no known exploitation of CVE-2019-9706 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2019-9706, GHSA-vvgw-8mjp-fp2r, UBUNTU-CVE-2019-9706.