Process core dumps must be disabled unless needed.

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000366

SV-64311r2_rule Process core dumps must be disabled unless needed.

Vulnerability discussion

Process core dumps contain the memory in use by the process when it crashed. Process core dump files can be of significant size and their use can result in file systems filling to capacity, which may result in Denial of Service. Process core dumps can be useful for software debugging.

Check content

# ulimit -Hc If the above command does not return 0 and the enabling of core dumps has not been documented and approved by the ISSO, this a finding.

Fix text

Edit /etc/security/limits.conf and set a hard limit for "core" to 0 for all users. A new logon will be required for the changes to take effect.

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