Title

Kernel core dumps must be disabled unless needed. (Cat II impact)

Discussion

Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in Denial of Service by exhausting the available space on the target file system. The kernel core dump process may increase the amount of time a system is unavailable due to a crash. Kernel core dumps can be useful for kernel debugging.

Check Content

Open a terminal session and use the following command to verify the system does not allow core dumps. sysctl -a | grep kern.coredump If kern.coredump is not set to 0, this is a finding.

Fix Text

Open a terminal session and edit the /etc/sysctl.conf file and add the following entry. kern.coredump=0 NOTE: If the sysctl.conf file does not exist use the following command to create one. touch /etc/sysctl.conf

Additional Identifiers

Rule ID: SV-38198r1_rule

Vulnerability ID: V-22404

Group Title:

Expert Comments

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