Title: Linux ps Vulnerability
Severity: INFO
Description:
In recent Linux distributions, the ps binary is defective and creates a subtle vulnerability for the operating system as a whole. When processes are running in the background and belong to a user who is deleted via deluser, a regular ps aux will not display them. This is because the user is removed from /etc/passwd. When ps tries to lookup the userid in /etc/passwd for a username, it finds nothing and will not display the process at all.
Affected Products:
- Pacific HiTech TurboLinux 1.2.0
- S.u.S.E. Linux 6.1.0
- Slackware Linux 4.0.0
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