|Platform: ubuntu19.04||Date: (C)2019-11-07 (M)2019-11-07|
Restrict Core Dumps
A core dump is the memory of an executable program. It is generally used to determine why a program aborted. It can also be used to glean confidential information from a core file. The system provides the ability to set a soft limit for core dumps, but this can be overridden by the user.
Setting a hard limit on core dumps prevents users from overriding the soft variable. If core dumps are required, consider setting limits for user groups (see limits.conf(5)). In addition, setting the fs.suid_dumpable variable to 0 will prevent setuid programs from dumping core. The apport service if active will override the fs.suid_dumpable variable setting and automatically create core dump reports. The whoopsie service monitors apport core dump reports and transmits them to Canonical.
Add the following line to the /etc/security/limits.conf file.
* hard core 0
Add the following line to the /etc/sysctl.conf file.
fs.suid_dumpable = 0
Uninstall the apport and whoopsie packages or comment out any start lines in
/etc/init/apport.conf and /etc/init/whoopsie.conf files:
# start on runlevel 
|SCAP Repo OVAL Definition||oval:org.secpod.oval:def:55185|