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Bug 20697

Summary: services won't start if another process of the same name is running
Product: [Retired] Red Hat Linux Reporter: Eric Smith <spacewar>
Component: initscriptsAssignee: Bill Nottingham <notting>
Status: CLOSED DUPLICATE QA Contact: David Lawrence <dkl>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.0CC: rvokal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2000-11-12 03:52:29 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Eric Smith 2000-11-12 03:52:26 UTC 
The deamon() function in /etc/rc.d/init.d/functions will not start a
service if there is an existing process with the same name, becuase
pidofproc() finds it.  For instance, a user of my system runs a custom
httpd process, completely independent of the installed Apache server.  If I
issue the command "/etc/rc.d/init.d/httpd restart", it will fail, without
giving any indication that there was a problem.

This is a possible Denial of Service attack.  An unprivileged user can
interfere with the operation of any system services managed through
initscripts that uses the deamon() function.

Suggested fix:  add an argument to daemon() and pidofproc() for the
expected UID of the process, perhaps defaulting to root.  Or, by default
allow it to match only UIDs under 100.
Comment 1 Eric Smith 2000-11-12 03:53:42 UTC 

*** This bug has been marked as a duplicate of 20696 ***
Comment 2 Eric Smith 2000-11-12 03:54:25 UTC 
Sorry, submitted twice by accident