Bug 245111 - (CVE-2007-3304) CVE-2007-3304 httpd scoreboard lack of PID protection
CVE-2007-3304 httpd scoreboard lack of PID protection
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 413891 449336 244659 244660 244665 244666 245116 245127 245752 246180 246181 246182 246214 411711 414281 430775 430776 430777 430780 430781 430782 449337 582767
Blocks: 444136
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Reported: 2007-06-21 03:47 EDT by Mark J. Cox (Product Security)
Modified: 2016-03-01 04:26 EST (History)
3 users (show)

See Also:
Fixed In Version: httpd 1.3.39
Doc Type: Bug Fix
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Last Closed: 2008-01-14 11:32:15 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Mark J. Cox (Product Security) 2007-06-21 03:47:16 EDT
"Apache httpd 1.3.37, and 2.0.59 and 2.2.4 with the Prefork MPM module,
allows local users to cause a denial of service by modifying the
worker_score and process_score arrays to reference an arbitrary
process ID, which is sent a SIGUSR1 signal from the master process,
"SIGUSR1 killer.""

Fixed upstream by

Note that you'd need to have given local users the ability to run scripts (such
as php, cgi) in order for them to kill arbitrary processes.
Comment 3 Mark J. Cox (Product Security) 2007-06-25 05:14:54 EDT
This issue only affects httpd 2.2.x and httpd 1.3.x, not httpd 2.0.x
Comment 16 errata-xmlrpc 2010-08-04 17:33:05 EDT
This issue has been addressed in following products:

  Red Hat Certificate System 7.3

Via RHSA-2010:0602 https://rhn.redhat.com/errata/RHSA-2010-0602.html

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