Unchecked Return Value in cron (Debian package) - CVE-2019-9704

 

Unchecked Return Value in cron (Debian package) - CVE-2019-9704

Published: May 11, 2022


Vulnerability identifier: #VU63055
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-9704
CWE-ID: CWE-252
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Debian
Affected software:
cron (Debian package)

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to the calloc return value is not checked. A local user can create a large crontab file and crash the daemon.


How to mitigate CVE-2019-9704

Install updates from vendor's website.

Sources