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Last updated: 5/31/2016 8:56:24 PM

CVE Publication rate: 19.57

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Vulnerability Workload Index: 12.29
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National Cyber Awareness System

Vulnerability Summary for CVE-2007-3304

Original release date: 06/20/2007
Last revised: 10/30/2012


Apache httpd 1.3.37, 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, aka "SIGUSR1 killer."


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.7 MEDIUM
Impact Subscore: 6.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Apache (07/02/2008)
Fixed in Apache HTTP Server 2.2.6, 2.0.61, and 1.3.39: http://httpd.apache.org/security/vulnerabilities_22.html http://httpd.apache.org/security/vulnerabilities_20.html http://httpd.apache.org/security/vulnerabilities_13.html

References to Advisories, Solutions, and Tools

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External Source: BID
Name: 24215
External Source: BUGTRAQ
Name: 20090821 VMSA-2009-0010 VMware Hosted products update libpng and Apache HTTP Server
External Source: SGI
Name: 20070701-01-P
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-1710
External Source: HP
Name: SSRT071476
External Source: VUPEN
Name: ADV-2007-3100
External Source: REDHAT
Name: RHSA-2007:0557
External Source: AIXAPAR
Name: PK53984
External Source: XF
Name: apache-child-process-dos(35095)
External Source: MISC
Name: http://security.psnc.pl/files/apache_report.pdf
External Source: BUGTRAQ
Name: 20070619 Apache Prefork MPM vulnerabilities - Report
External Source: CONFIRM
Name: http://bugs.gentoo.org/show_bug.cgi?id=186219
External Source: MLIST
Name: [security-announce] 20090820 VMSA-2009-0010 VMware Hosted products update libpng and Apache HTTP Server
External Source: SUNALERT
Name: 103179
External Source: VUPEN
Name: ADV-2007-3420
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2007-353.htm
External Source: VUPEN
Name: ADV-2007-4305
External Source: CONFIRM
Name: http://httpd.apache.org/security/vulnerabilities_13.html
External Source: MLIST
Name: [apache-httpd-dev] 20070622 Re: PID table changes (was Re: svn commit: r547987 - in /httpd/httpd/trunk)
External Source: REDHAT
Name: RHSA-2007:0532
External Source: CONFIRM
Name: http://httpd.apache.org/security/vulnerabilities_20.html
External Source: REDHAT
Name: RHSA-2007:0662
External Source: VUPEN
Name: ADV-2007-3283
External Source: MANDRIVA
Name: MDKSA-2007:140
External Source: MANDRIVA
Name: MDKSA-2007:142
External Source: SUSE
Name: SUSE-SA:2007:061
External Source: BUGTRAQ
Name: 20070529 Apache httpd vulenrabilities
External Source: VUPEN
Name: ADV-2007-2727
External Source: AIXAPAR
Name: PK50467
External Source: VUPEN
Name: ADV-2008-0233
External Source: CONFIRM
Name: http://httpd.apache.org/security/vulnerabilities_22.html
External Source: UBUNTU
Name: USN-499-1
External Source: VUPEN
Name: ADV-2007-3494
External Source: SECTRACK
Name: 1018304
External Source: SUNALERT
Name: 200032
External Source: OVAL
Name: oval:org.mitre.oval:def:11589
External Source: CONFIRM
Name: http://svn.apache.org/viewvc?view=rev&revision=547987
External Source: GENTOO
Name: GLSA-200711-06
External Source: REDHAT
Name: RHSA-2007:0556
External Source: MISC
Name: http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=245111
External Source: CONFIRM
Name: http://www.fujitsu.com/global/support/software/security/products-f/interstage-200802e.html
External Source: MLIST
Name: [apache-httpd-dev] 20070629 Re: [PATCH] pid safety checks for 2.2.x
External Source: REDHAT
Name: RHSA-2008:0261
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2007-363.htm
External Source: TRUSTIX
Name: 2007-0026
External Source: FEDORA
Name: FEDORA-2007-2214
External Source: AIXAPAR
Name: PK52702
External Source: SREASON
Name: 2814

References to Check Content

Identifier: oval:org.mitre.oval:def:11589
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)