suexec/2022: exec failure message fails to log, permission denied

[Gregory Lundberg <lu...@vr.net>]

>Number:         2022
>Category:       suexec
>Synopsis:       exec failure message fails to log, permission denied
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Tue Mar 31 13:10:00 PST 1998
>Last-Modified:
>Originator:     lundber@vr.net
>Organization:
apache
>Release:        1.3b5
>Environment:
Linux 2.0.30
Hybrid Apache 1.2.6, I use suEXEC and rotatelogs from the 1.3 tree
>Description:
If suEXEC's log file is only writable by root, the error message from execv()
fails (permission denied) causing errors to go to Apache's error log.
>How-To-Repeat:
touch /var/log/cgi.log
chmod 0600 /var/log/cgi.log
cp /tmp/apache/cgi-bin/printenv ~mine/www/printenv.cgi
chmod 0 ~mine/www/printenv.cgi
lynx http://localhost/~mine/printenv.cgi
>Fix:
Preferred: recapture root privilege before logging the error
Acceptable: die with a better message in Apache's error log
OK, I guess: silently die and let the site maintainer puzzle it out
%0
>Audit-Trail:
>Unformatted:
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