Executive Summary

Informations
Name CVE-2009-1891 First vendor Publication 2009-07-10
Vendor Cve Last vendor Modification 2018-10-30

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.1 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1891

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12361
 
Oval ID: oval:org.mitre.oval:def:12361
Title: HP-UX Apache-based Web Server, Local Information Disclosure, Increase of Privilege, Remote Denial of Service (DoS)
Description: The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).
Family: unix Class: vulnerability
Reference(s): CVE-2009-1891
Version: 12
Platform(s): HP-UX 11
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13185
 
Oval ID: oval:org.mitre.oval:def:13185
Title: USN-802-1 -- apache2 vulnerabilities
Description: It was discovered that mod_proxy_http did not properly handle a large amount of streamed data when used as a reverse proxy. A remote attacker could exploit this and cause a denial of service via memory resource consumption. This issue affected Ubuntu 8.04 LTS, 8.10 and 9.04. It was discovered that mod_deflate did not abort compressing large files when the connection was closed. A remote attacker could exploit this and cause a denial of service via CPU resource consumption
Family: unix Class: patch
Reference(s): USN-802-1
CVE-2009-1890
CVE-2009-1891
Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 9.04
Ubuntu 6.06
Ubuntu 8.10
Product(s): apache2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13769
 
Oval ID: oval:org.mitre.oval:def:13769
Title: DSA-1834-2 apache2 -- denial of service
Description: The previous update caused a regression for apache2 in Debian 4.0 "etch". Using mod_deflate together with mod_php could cause segfaults when a client aborts a connection. This update corrects this flaw. For reference the original advisory text is below. A denial of service flaw was found in the Apache mod_proxy module when it was used as a reverse proxy. A remote attacker could use this flaw to force a proxy process to consume large amounts of CPU time. This issue did not affect Debian 4.0 "etch". A denial of service flaw was found in the Apache mod_deflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. A similar flaw related to HEAD requests for compressed content was also fixed. The oldstable distribution, this problem has been fixed in version 2.2.3-4+etch10. The other distributions stable, testing and unstable were not affected by the regression. This advisory also provides updated apache2-mpm-itk packages which have been recompiled against the new apache2 packages. Updated packages for apache2-mpm-itk for the s390 architecture are not included yet. They will be released as soon as they become available. We recommend that you upgrade your apache2, apache2-mpm-itk package.
Family: unix Class: patch
Reference(s): DSA-1834-2
CVE-2009-1890
CVE-2009-1891
Version: 5
Platform(s): Debian GNU/Linux 4.0
Product(s): apache2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:19296
 
Oval ID: oval:org.mitre.oval:def:19296
Title: DSA-1834-1 apache2 apache2-mpm-itk - denial of service
Description: A denial of service flaw was found in the Apache mod_proxy module when it was used as a reverse proxy. A remote attacker could use this flaw to force a proxy process to consume large amounts of CPU time. This issue did not affect Debian 4.0 "etch".
Family: unix Class: patch
Reference(s): DSA-1834-1
CVE-2009-1890
CVE-2009-1891
Version: 5
Platform(s): Debian GNU/Linux 4.0
Debian GNU/Linux 5.0
Product(s): apache2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22875
 
Oval ID: oval:org.mitre.oval:def:22875
Title: ELSA-2009:1148: httpd security update (Important)
Description: The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).
Family: unix Class: patch
Reference(s): ELSA-2009:1148-01
CVE-2009-1890
CVE-2009-1891
Version: 13
Platform(s): Oracle Linux 5
Product(s): httpd
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28396
 
Oval ID: oval:org.mitre.oval:def:28396
Title: RHSA-2009:1148 -- httpd security update (Important)
Description: Updated httpd packages that fix two security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. The Apache HTTP Server is a popular Web server. A denial of service flaw was found in the Apache mod_proxy module when it was used as a reverse proxy. A remote attacker could use this flaw to force a proxy process to consume large amounts of CPU time. (CVE-2009-1890)
Family: unix Class: patch
Reference(s): RHSA-2009:1148
CESA-2009:1148-CentOS 5
CVE-2009-1890
CVE-2009-1891
Version: 3
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): httpd
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:7600
 
Oval ID: oval:org.mitre.oval:def:7600
Title: DSA-1834 apache2 -- denial of service
Description: A denial of service flaw was found in the Apache mod_proxy module when it was used as a reverse proxy. A remote attacker could use this flaw to force a proxy process to consume large amounts of CPU time. This issue did not affect Debian 4.0 "etch". A denial of service flaw was found in the Apache mod_deflate module. This module continued to compress large files until compression was complete, even if the network connection that requested the content was closed before compression completed. This would cause mod_deflate to consume large amounts of CPU if mod_deflate was enabled for a large file. A similar flaw related to HEAD requests for compressed content was also fixed. The oldstable distribution (etch), these problems have been fixed in version 2.2.3-4+etch9.
Family: unix Class: patch
Reference(s): DSA-1834
CVE-2009-1890
CVE-2009-1891
Version: 3
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 4.0
Product(s): apache2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:8632
 
Oval ID: oval:org.mitre.oval:def:8632
Title: Apache 'mod_deflate' Connection State Denial Of Service Vulnerability
Description: The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).
Family: windows Class: vulnerability
Reference(s): CVE-2009-1891
Version: 7
Platform(s): Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Server 2008
Microsoft Windows Vista
Microsoft Windows 7
Product(s): Apache
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:9248
 
Oval ID: oval:org.mitre.oval:def:9248
Title: The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).
Description: The mod_deflate module in Apache httpd 2.2.11 and earlier compresses large files until completion even after the associated network connection is closed, which allows remote attackers to cause a denial of service (CPU consumption).
Family: unix Class: vulnerability
Reference(s): CVE-2009-1891
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Red Hat Enterprise Linux 5
CentOS Linux 5
Oracle Linux 5
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 173

OpenVAS Exploits

Date Description
2011-08-09 Name : CentOS Update for httpd CESA-2009:1148 centos5 i386
File : nvt/gb_CESA-2009_1148_httpd_centos5_i386.nasl
2011-08-09 Name : CentOS Update for httpd CESA-2009:1205 centos3 i386
File : nvt/gb_CESA-2009_1205_httpd_centos3_i386.nasl
2011-08-09 Name : CentOS Update for httpd CESA-2009:1580 centos4 i386
File : nvt/gb_CESA-2009_1580_httpd_centos4_i386.nasl
2011-01-04 Name : HP-UX Update for Apache-based Web Server HPSBUX02612
File : nvt/gb_hp_ux_HPSBUX02612.nasl
2010-05-12 Name : Mac OS X 10.6.2 Update / Mac OS X Security Update 2009-006
File : nvt/macosx_upd_10_6_2_secupd_2009-006.nasl
2009-12-10 Name : Mandriva Security Advisory MDVSA-2009:323 (apache)
File : nvt/mdksa_2009_323.nasl
2009-11-17 Name : RedHat Security Advisory RHSA-2009:1580
File : nvt/RHSA_2009_1580.nasl
2009-11-17 Name : CentOS Security Advisory CESA-2009:1580 (httpd)
File : nvt/ovcesa2009_1580.nasl
2009-10-27 Name : SuSE Security Advisory SUSE-SA:2009:050 (apache2,libapr1)
File : nvt/suse_sa_2009_050.nasl
2009-10-27 Name : SLES9: Security update for Apache 2
File : nvt/sles9p5060942.nasl
2009-10-27 Name : SLES11: Security update for Apache 2
File : nvt/sles11_apache2.nasl
2009-10-27 Name : SLES10: Security update for Apache 2
File : nvt/sles10_apache21.nasl
2009-09-02 Name : Ubuntu USN-802-2 (apache2)
File : nvt/ubuntu_802_2.nasl
2009-09-02 Name : FreeBSD Ports: apache
File : nvt/freebsd_apache15.nasl
2009-09-02 Name : Fedora Core 11 FEDORA-2009-8812 (httpd)
File : nvt/fcore_2009_8812.nasl
2009-08-17 Name : Mandrake Security Advisory MDVSA-2009:168 (apache)
File : nvt/mdksa_2009_168.nasl
2009-08-17 Name : CentOS Security Advisory CESA-2009:1205 (httpd)
File : nvt/ovcesa2009_1205.nasl
2009-08-17 Name : Debian Security Advisory DSA 1834-2 (apache2)
File : nvt/deb_1834_2.nasl
2009-08-17 Name : RedHat Security Advisory RHSA-2009:1205
File : nvt/RHSA_2009_1205.nasl
2009-07-29 Name : Gentoo Security Advisory GLSA 200907-04 (apache)
File : nvt/glsa_200907_04.nasl
2009-07-29 Name : RedHat Security Advisory RHSA-2009:1148
File : nvt/RHSA_2009_1148.nasl
2009-07-29 Name : Ubuntu USN-802-1 (apache2)
File : nvt/ubuntu_802_1.nasl
2009-07-29 Name : Ubuntu USN-801-1 (tiff)
File : nvt/ubuntu_801_1.nasl
2009-07-29 Name : Ubuntu USN-799-1 (dbus)
File : nvt/ubuntu_799_1.nasl
2009-07-29 Name : RedHat Security Advisory RHSA-2009:1156
File : nvt/RHSA_2009_1156.nasl
2009-07-29 Name : Debian Security Advisory DSA 1834-1 (apache2)
File : nvt/deb_1834_1.nasl
2009-07-29 Name : CentOS Security Advisory CESA-2009:1148 (httpd)
File : nvt/ovcesa2009_1148.nasl
2009-07-29 Name : Mandrake Security Advisory MDVSA-2009:149 (apache)
File : nvt/mdksa_2009_149.nasl
2009-07-15 Name : Apache 'mod_deflate' Denial Of Service Vulnerability - July09
File : nvt/gb_apache_mod_deflate_dos_vuln_jul09.nasl
0000-00-00 Name : Slackware Advisory SSA:2009-214-01 httpd
File : nvt/esoft_slk_ssa_2009_214_01.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
55782 Apache HTTP Server mod_deflate Module Aborted Connection DoS

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-1580.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-1205.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-1148.nasl - Type : ACT_GATHER_INFO
2013-06-29 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2009-1580.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20091111_httpd_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20090810_httpd_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20090709_httpd_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2010-10-20 Name : The remote web server is affected by multiple vulnerabilities.
File : apache_2_0_64.nasl - Type : ACT_GATHER_INFO
2010-10-11 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_apache2-6572.nasl - Type : ACT_GATHER_INFO
2010-02-24 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1834.nasl - Type : ACT_GATHER_INFO
2010-01-06 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2009-1148.nasl - Type : ACT_GATHER_INFO
2009-12-08 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2009-323.nasl - Type : ACT_GATHER_INFO
2009-11-12 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-1580.nasl - Type : ACT_GATHER_INFO
2009-11-09 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_10_6_2.nasl - Type : ACT_GATHER_INFO
2009-11-09 Name : The remote host is missing a Mac OS X update that fixes various security issues.
File : macosx_SecUpd2009-006.nasl - Type : ACT_GATHER_INFO
2009-10-30 Name : The remote openSUSE host is missing a security update.
File : suse_apache2-6576.nasl - Type : ACT_GATHER_INFO
2009-10-26 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_apache2-6571.nasl - Type : ACT_GATHER_INFO
2009-10-26 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_apache2-091020.nasl - Type : ACT_GATHER_INFO
2009-10-26 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_apache2-091020.nasl - Type : ACT_GATHER_INFO
2009-10-26 Name : The remote openSUSE host is missing a security update.
File : suse_11_0_apache2-091020.nasl - Type : ACT_GATHER_INFO
2009-10-26 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12526.nasl - Type : ACT_GATHER_INFO
2009-09-02 Name : The remote Fedora host is missing a security update.
File : fedora_2009-8812.nasl - Type : ACT_GATHER_INFO
2009-08-25 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_e15f2356913911de8f42001aa0166822.nasl - Type : ACT_GATHER_INFO
2009-08-20 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-802-2.nasl - Type : ACT_GATHER_INFO
2009-08-11 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-1205.nasl - Type : ACT_GATHER_INFO
2009-08-11 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2009-1205.nasl - Type : ACT_GATHER_INFO
2009-08-03 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2009-214-01.nasl - Type : ACT_GATHER_INFO
2009-08-02 Name : The remote web server may be affected by several issues.
File : apache_2_2_12.nasl - Type : ACT_GATHER_INFO
2009-07-14 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-802-1.nasl - Type : ACT_GATHER_INFO
2009-07-13 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200907-04.nasl - Type : ACT_GATHER_INFO
2009-07-10 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-1148.nasl - Type : ACT_GATHER_INFO
2009-07-10 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2009-149.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
AIXAPAR http://www-01.ibm.com/support/docview.wss?uid=swg1PK91361
http://www-01.ibm.com/support/docview.wss?uid=swg1PK99480
APPLE http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
BUGTRAQ http://www.securityfocus.com/archive/1/507857/100/0/threaded
CONFIRM http://support.apple.com/kb/HT3937
http://wiki.rpath.com/Advisories:rPSA-2009-0142
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0142
https://bugzilla.redhat.com/show_bug.cgi?id=509125
DEBIAN http://www.debian.org/security/2009/dsa-1834
FEDORA https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01363....
GENTOO http://security.gentoo.org/glsa/glsa-200907-04.xml
HP http://marc.info/?l=bugtraq&m=129190899612998&w=2
http://marc.info/?l=bugtraq&m=130497311408250&w=2
MANDRIVA http://www.mandriva.com/security/advisories?name=MDVSA-2009:149
MISC http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534712
MLIST http://marc.info/?l=apache-httpd-dev&m=124621326524824&w=2
http://marc.info/?l=apache-httpd-dev&m=124661528519546&w=2
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e0...
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc1...
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5...
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360...
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9...
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86...
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525...
https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806ce...
OSVDB http://osvdb.org/55782
OVAL https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.ova...
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.ova...
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.ova...
REDHAT http://www.redhat.com/support/errata/RHSA-2009-1156.html
https://rhn.redhat.com/errata/RHSA-2009-1148.html
SECTRACK http://www.securitytracker.com/id?1022529
SECUNIA http://secunia.com/advisories/35721
http://secunia.com/advisories/35781
http://secunia.com/advisories/35793
http://secunia.com/advisories/35865
http://secunia.com/advisories/37152
http://secunia.com/advisories/37221
SUSE http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00006.html
UBUNTU http://www.ubuntu.com/usn/USN-802-1
VUPEN http://www.vupen.com/english/advisories/2009/1841
http://www.vupen.com/english/advisories/2009/3184

Alert History

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Date Informations
2020-05-23 01:40:29
  • Multiple Updates
2020-05-23 00:23:52
  • Multiple Updates
2019-08-23 12:01:31
  • Multiple Updates
2019-03-18 12:02:08
  • Multiple Updates
2018-10-31 00:19:57
  • Multiple Updates
2018-10-11 00:19:37
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2018-04-16 01:01:04
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2017-09-29 09:24:15
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2016-09-30 01:02:05
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2016-06-28 17:43:06
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2016-04-26 18:52:13
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2014-02-17 10:50:18
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2013-05-10 23:51:45
  • Multiple Updates