Executive Summary

Summary
Title httpd security update
Informations
Name RHSA-2011:1294 First vendor Publication 2011-09-14
Vendor RedHat Last vendor Modification 2011-09-14
Severity (Vendor) Important Revision 01

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:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated httpd packages that fix one security issue are now available for Red Hat Enterprise Linux 5.3 Long Life, 5.6 Extended Update Support, and 6.0 Extended Update Support.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux (v. 5.3.LL server) - i386, ia64, x86_64 Red Hat Enterprise Linux Server (v. 6.0.z) - i386, noarch, ppc64, s390x, x86_64

3. Description:

The Apache HTTP Server is a popular web server.

A flaw was found in the way the Apache HTTP Server handled Range HTTP headers. A remote attacker could use this flaw to cause httpd to use an excessive amount of memory and CPU time via HTTP requests with a specially-crafted Range header. (CVE-2011-3192)

All httpd users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

732928 - CVE-2011-3192 httpd: multiple ranges DoS

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2011-1294.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:14762
 
Oval ID: oval:org.mitre.oval:def:14762
Title: HP-UX Apache Web Server, Remote Denial of Service (DoS)
Description: The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Family: unix Class: vulnerability
Reference(s): CVE-2011-3192
Version: 12
Platform(s): HP-UX 11
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:14824
 
Oval ID: oval:org.mitre.oval:def:14824
Title: HP-UX Apache Web Server, Remote Denial of Service (DoS)
Description: The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Family: unix Class: vulnerability
Reference(s): CVE-2011-3192
Version: 11
Platform(s): HP-UX 11
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:15135
 
Oval ID: oval:org.mitre.oval:def:15135
Title: DSA-2298-2 apache2 -- denial of service
Description: The apache2 Upgrade from DSA-2298-1 has caused a regression that prevented some video players from seeking in video files served by Apache HTTPD. This update fixes this bug. The text of the original advisory is reproduced for reference: Two issues have been found in the Apache HTTPD web server: CVE-2011-3192 A vulnerability has been found in the way the multiple overlapping ranges are handled by the Apache HTTPD server. This vulnerability allows an attacker to cause Apache HTTPD to use an excessive amount of memory, causing a denial of service. CVE-2010-1452 A vulnerability has been found in mod_dav that allows an attacker to cause a daemon crash, causing a denial of service. This issue only affects the Debian 5.0 oldstable/lenny distribution. The regression has been fixed in the following packages: For the oldstable distribution, this problem has been fixed in version 2.2.9-10+lenny11. For the stable distribution, this problem has been fixed in version 2.2.16-6+squeeze3. For the testing distribution, this problem will be fixed in version 2.2.20-1. For the unstable distribution, this problem has been fixed in version 2.2.20-1. We recommend that you upgrade your apache2 packages. This update also contains updated apache2-mpm-itk packages which have been recompiled against the updated apache2 packages. The new version number
Family: unix Class: patch
Reference(s): DSA-2298-2
CVE-2010-1452
CVE-2011-3192
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): apache2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:15145
 
Oval ID: oval:org.mitre.oval:def:15145
Title: DSA-2298-1 apache2 -- denial of service
Description: Two issues have been found in the Apache HTTPD web server: CVE-2011-3192 A vulnerability has been found in the way the multiple overlapping ranges are handled by the Apache HTTPD server. This vulnerability allows an attacker to cause Apache HTTPD to use an excessive amount of memory, causing a denial of service. CVE-2010-1452 A vulnerability has been found in mod_dav that allows an attacker to cause a daemon crash, causing a denial of service. This issue only affects the Debian 5.0 oldstable/lenny distribution. For the oldstable distribution, these problems have been fixed in version 2.2.9-10+lenny10. For the stable distribution, this problem has been fixed in version 2.2.16-6+squeeze2. For the testing distribution, this problem will be fixed soon. For the unstable distribution, this problem has been fixed in version 2.2.19-2. We recommend that you upgrade your apache2 packages. This update also contains updated apache2-mpm-itk packages which have been recompiled against the updated apache2 packages. The new version number
Family: unix Class: patch
Reference(s): DSA-2298-1
CVE-2010-1452
CVE-2011-3192
Version: 5
Platform(s): Debian GNU/Linux 5.0
Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): apache2
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:15347
 
Oval ID: oval:org.mitre.oval:def:15347
Title: USN-1199-1 -- Apache vulnerability
Description: apache2: Apache HTTP server A remote attacker could send crafted input to Apache and cause it to crash.
Family: unix Class: patch
Reference(s): USN-1199-1
CVE-2011-3192
Version: 5
Platform(s): Ubuntu 11.04
Ubuntu 8.04
Ubuntu 10.04
Ubuntu 10.10
Product(s): Apache
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:18827
 
Oval ID: oval:org.mitre.oval:def:18827
Title: Apache HTTP vulnerability 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 in VisualSVN Server (CVE-2011-3192)
Description: The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Family: windows Class: vulnerability
Reference(s): CVE-2011-3192
Version: 5
Platform(s): Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012
Product(s): VisualSVN Server
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22002
 
Oval ID: oval:org.mitre.oval:def:22002
Title: RHSA-2011:1245: httpd security update (Important)
Description: The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Family: unix Class: patch
Reference(s): RHSA-2011:1245-01
CVE-2011-3192
Version: 4
Platform(s): Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
Product(s): httpd
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22855
 
Oval ID: oval:org.mitre.oval:def:22855
Title: DEPRECATED: ELSA-2011:1245: httpd security update (Important)
Description: The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Family: unix Class: patch
Reference(s): ELSA-2011:1245-01
CVE-2011-3192
Version: 7
Platform(s): Oracle Linux 5
Oracle Linux 6
Product(s): httpd
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23476
 
Oval ID: oval:org.mitre.oval:def:23476
Title: ELSA-2011:1245: httpd security update (Important)
Description: The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.
Family: unix Class: patch
Reference(s): ELSA-2011:1245-01
CVE-2011-3192
Version: 6
Platform(s): Oracle Linux 5
Oracle Linux 6
Product(s): httpd
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 185
Os 4
Os 2
Os 5
Os 3

ExploitDB Exploits

id Description
2011-12-09 Apache HTTP Server Denial of Service

OpenVAS Exploits

Date Description
2012-09-10 Name : Slackware Advisory SSA:2011-252-01 httpd
File : nvt/esoft_slk_ssa_2011_252_01.nasl
2012-09-10 Name : Slackware Advisory SSA:2011-284-01 httpd
File : nvt/esoft_slk_ssa_2011_284_01.nasl
2012-08-10 Name : Gentoo Security Advisory GLSA 201206-25 (apache)
File : nvt/glsa_201206_25.nasl
2012-07-30 Name : CentOS Update for httpd CESA-2011:1245 centos4 x86_64
File : nvt/gb_CESA-2011_1245_httpd_centos4_x86_64.nasl
2012-07-30 Name : CentOS Update for httpd CESA-2011:1392 centos5 x86_64
File : nvt/gb_CESA-2011_1392_httpd_centos5_x86_64.nasl
2012-07-30 Name : CentOS Update for httpd CESA-2011:1392 centos4 x86_64
File : nvt/gb_CESA-2011_1392_httpd_centos4_x86_64.nasl
2012-07-09 Name : RedHat Update for httpd RHSA-2011:1391-01
File : nvt/gb_RHSA-2011_1391-01_httpd.nasl
2012-04-02 Name : Fedora Update for httpd FEDORA-2011-12667
File : nvt/gb_fedora_2011_12667_httpd_fc16.nasl
2011-11-11 Name : Mandriva Update for apache MDVSA-2011:168 (apache)
File : nvt/gb_mandriva_MDVSA_2011_168.nasl
2011-11-11 Name : CentOS Update for httpd CESA-2011:1392 centos4 i386
File : nvt/gb_CESA-2011_1392_httpd_centos4_i386.nasl
2011-10-21 Name : CentOS Update for httpd CESA-2011:1392 centos5 i386
File : nvt/gb_CESA-2011_1392_httpd_centos5_i386.nasl
2011-10-21 Name : RedHat Update for httpd RHSA-2011:1392-01
File : nvt/gb_RHSA-2011_1392-01_httpd.nasl
2011-10-20 Name : Mac OS X v10.6.8 Multiple Vulnerabilities (2011-006)
File : nvt/gb_macosx_su11-006.nasl
2011-09-21 Name : Debian Security Advisory DSA 2298-1 (apache2)
File : nvt/deb_2298_1.nasl
2011-09-21 Name : FreeBSD Ports: apache, apache-event, apache-itk, apache-peruser, apache-worker
File : nvt/freebsd_apache18.nasl
2011-09-21 Name : Debian Security Advisory DSA 2298-2 (apache2)
File : nvt/deb_2298_2.nasl
2011-09-16 Name : RedHat Update for httpd RHSA-2011:1294-01
File : nvt/gb_RHSA-2011_1294-01_httpd.nasl
2011-09-16 Name : Fedora Update for httpd FEDORA-2011-12715
File : nvt/gb_fedora_2011_12715_httpd_fc15.nasl
2011-09-07 Name : Ubuntu Update for apache2 USN-1199-1
File : nvt/gb_ubuntu_USN_1199_1.nasl
2011-09-07 Name : RedHat Update for httpd RHSA-2011:1245-01
File : nvt/gb_RHSA-2011_1245-01_httpd.nasl
2011-09-07 Name : Mandriva Update for apache MDVSA-2011:130 (apache)
File : nvt/gb_mandriva_MDVSA_2011_130.nasl
2011-09-07 Name : CentOS Update for httpd CESA-2011:1245 centos4 i386
File : nvt/gb_CESA-2011_1245_httpd_centos4_i386.nasl
2011-08-26 Name : Apache httpd Web Server Range Header Denial of Service Vulnerability
File : nvt/secpod_apache_http_srv_range_header_dos_vuln.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
74721 Apache HTTP Server ByteRange Filter Memory Exhaustion Remote DoS

A denial of service vulnerability has been found in the way the multiple overlapping ranges are handled by the Apache HTTPD server prior to version 2.2.20: http://seclists.org/fulldisclosure/2011/Aug/175 An attack tool is circulating in the wild. Active use of this tool has been observed. The attack can be done remotely and with a modest number of requests can cause very significant memory and CPU usage on the server. The default Apache httpd installations version 2.0 prior to 2.0.65 and version 2.2 prior to 2.2.20 are vulnerable. Apache 2.2.20 does fix this issue; however with a number of side effects (see release notes). Version 2.2.21 corrects a protocol defect in 2.2.20, and also introduces the MaxRanges directive. Version 2.0.65 includes fix for this vulnerability. Apache 1.3 is NOT vulnerable. However as explained in the background section in more detail - this attack does cause a significant and possibly unexpected load. You are advised to review your configuration in that light.

Snort® IPS/IDS

Date Description
2014-01-10 Apache Killer denial of service tool exploit attempt
RuleID : 19825 - Revision : 13 - Type : SERVER-APACHE

Nessus® Vulnerability Scanner

Date Description
2014-11-08 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0542.nasl - Type : ACT_GATHER_INFO
2014-10-12 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2011-1.nasl - Type : ACT_GATHER_INFO
2014-10-10 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL13114.nasl - Type : ACT_GATHER_INFO
2014-08-22 Name : The remote host is affected by multiple vulnerabilities.
File : juniper_nsm_jsa10642.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_apache2-111026.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_apache2-110831.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_apache2-111026.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_apache2-110831.nasl - Type : ACT_GATHER_INFO
2013-09-04 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2011-01.nasl - Type : ACT_GATHER_INFO
2013-07-16 Name : The remote web server is affected by several vulnerabilities.
File : apache_2_0_65.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1392.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1245.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1391.nasl - Type : ACT_GATHER_INFO
2013-01-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1294.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20111020_httpd_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20111020_httpd_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110831_httpd_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2012-06-25 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201206-25.nasl - Type : ACT_GATHER_INFO
2012-04-20 Name : The remote web server is affected by multiple vulnerabilities.
File : hpsmh_7_0_0_24.nasl - Type : ACT_GATHER_INFO
2012-01-19 Name : The remote application server is affected by multiple vulnerabilities.
File : websphere_6_1_0_41.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_apache2-110831.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_apache2-111026.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_apache2-7722.nasl - Type : ACT_GATHER_INFO
2011-11-10 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-168.nasl - Type : ACT_GATHER_INFO
2011-10-24 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_apache2-7721.nasl - Type : ACT_GATHER_INFO
2011-10-21 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-1392.nasl - Type : ACT_GATHER_INFO
2011-10-21 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1391.nasl - Type : ACT_GATHER_INFO
2011-10-21 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1392.nasl - Type : ACT_GATHER_INFO
2011-10-13 Name : The remote host is missing a Mac OS X update that fixes several security issues.
File : macosx_SecUpd2011-006.nasl - Type : ACT_GATHER_INFO
2011-10-13 Name : The remote host is missing a Mac OS X update that fixes several security issues.
File : macosx_10_7_2.nasl - Type : ACT_GATHER_INFO
2011-10-03 Name : The remote Fedora host is missing a security update.
File : fedora_2011-12667.nasl - Type : ACT_GATHER_INFO
2011-09-30 Name : The remote application server may be affected by multiple vulnerabilities.
File : websphere_8_0_0_1.nasl - Type : ACT_GATHER_INFO
2011-09-16 Name : The remote Fedora host is missing a security update.
File : fedora_2011-12715.nasl - Type : ACT_GATHER_INFO
2011-09-12 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2011-252-01.nasl - Type : ACT_GATHER_INFO
2011-09-06 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-130.nasl - Type : ACT_GATHER_INFO
2011-09-02 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1199-1.nasl - Type : ACT_GATHER_INFO
2011-09-02 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-1245.nasl - Type : ACT_GATHER_INFO
2011-09-01 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1245.nasl - Type : ACT_GATHER_INFO
2011-08-31 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_7f6108d2cea811e09d580800279895ea.nasl - Type : ACT_GATHER_INFO
2011-08-30 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2298.nasl - Type : ACT_GATHER_INFO
2011-08-25 Name : The web server running on the remote host is affected by a denial of service ...
File : apache_range_dos.nasl - Type : ACT_ATTACK

Alert History

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0
Date Informations
2014-02-17 11:55:07
  • Multiple Updates