Process core dumps must be disabled unless needed.

From Oracle Linux 5 Security Technical Implementation Guide

Part of GEN003500

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.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer