CVE-2019-9704

Name of the Vulnerable Software and Affected Versions Vixie Cron versions prior to 3.0pl1-133

Description The issue is related to a daemon scheduler task vulnerability in UNIX-like operating systems, specifically in the Cron system. It involves pointer dereference errors. Exploitation of this issue allows an attacker to cause a denial of service, leading to a daemon crash. This can be achieved by a local user through a large crontab file, as the calloc return value is not properly checked.

Recommendations For Vixie Cron versions prior to 3.0pl1-133, update to version 3.0pl1-133 or later to resolve the issue. As a temporary workaround, consider restricting access to large crontab files to minimize the risk of exploitation.