ID

VAR-201108-0132

CVE

CVE-2011-3192

TITLE

Apache HTTPD 1.3/2.x Range header DoS vulnerability

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. Both the 'Range' header and the 'Range-Request' header are vulnerable. The attack tool causes a significant increase in CPU and memory usage on the server. Apache HTTPD The server has a service disruption (DoS) Vulnerabilities exist. Apache HTTPD The server Range Header and Request-Range There is a problem with header processing, and service operation is interrupted. (DoS) Vulnerabilities exist. Attacks using this vulnerability have been observed. Also, "Apache Killer" The attack tool called is released. Apache The advisory states that: "Background and the 2007 report There are two aspects to this vulnerability. One is new, is Apache specific; and resolved with this server side fix. The other issue is fundamentally a protocol design issue dating back to 2007: http://seclists.org/bugtraq/2007/Jan/83 The contemporary interpretation of the HTTP protocol (currently) requires a server to return multiple (overlapping) ranges; in the order requested. This means that one can request a very large range (e.g. from byte 0- to the end) 100's of times in a single request. Being able to do so is an issue for (probably all) webservers and currently subject of an IETF discussion to change the protocol: http://trac.tools.ietf.org/wg/httpbis/trac/ticket/311 This advisory details a problem with how Apache httpd and its so called internal 'bucket brigades' deal with serving such "valid" request. The problem is that currently such requests internally explode into 100's of large fetches, all of which are kept in memory in an inefficient way. This is being addressed in two ways. By making things more efficient. And by weeding out or simplifying requests deemed too unwieldy."Service disruption by a remote third party (DoS) There is a possibility of being attacked. ---------------------------------------------------------------------- The Secunia CSI 5.0 Beta - now available for testing Find out more, take a free test drive, and share your opinion with us: http://secunia.com/blog/242 ---------------------------------------------------------------------- TITLE: Hitachi Web Server ByteRange Filter Denial of Service Vulnerability SECUNIA ADVISORY ID: SA45865 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/45865/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=45865 RELEASE DATE: 2011-09-05 DISCUSS ADVISORY: http://secunia.com/advisories/45865/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/45865/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=45865 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: Hitachi has acknowledged a vulnerability in Hitachi Web Server, which can be exploited by malicious people to cause a DoS (Denial of Service). SOLUTION: Apply a workaround (please see the vendor's advisory for details). ORIGINAL ADVISORY: Hitachi (Japanese): http://www.hitachi.co.jp/Prod/comp/soft1/security/info/./vuls/HS11-019/index.html OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ---------------------------------------------------------------------- . Summary: Updated httpd packages that fix one security issue are now available for Red Hat Application Stack v2. 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 Application Stack v2 for Enterprise Linux (v.5) - i386, x86_64 3. (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 6. Package List: Red Hat Application Stack v2 for Enterprise Linux (v.5): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHWAS/SRPMS/httpd-2.2.13-3.el5s2.src.rpm i386: httpd-2.2.13-3.el5s2.i386.rpm httpd-debuginfo-2.2.13-3.el5s2.i386.rpm httpd-devel-2.2.13-3.el5s2.i386.rpm httpd-manual-2.2.13-3.el5s2.i386.rpm mod_ssl-2.2.13-3.el5s2.i386.rpm x86_64: httpd-2.2.13-3.el5s2.x86_64.rpm httpd-debuginfo-2.2.13-3.el5s2.i386.rpm httpd-debuginfo-2.2.13-3.el5s2.x86_64.rpm httpd-devel-2.2.13-3.el5s2.i386.rpm httpd-devel-2.2.13-3.el5s2.x86_64.rpm httpd-manual-2.2.13-3.el5s2.x86_64.rpm mod_ssl-2.2.13-3.el5s2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-3192.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2011 Red Hat, Inc. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c03025215 Version: 1 HPSBUX02707 SSRT100626 rev.1 - HP-UX Apache Web Server, Remote Denial of Service (DoS) NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2011-09-26 Last Updated: 2011-09-26 ------------------------------------------------------------------------------ Potential Security Impact: Remote Denial of Service (DoS) Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified with HP-UX Apache Web Server. This vulnerability could be exploited remotely to create a Denial of Service (DoS). References: CVE-2011-0419, CVE-2011-3192, CVE-2011-3348 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.23, B.11.31 running HP-UX Apache Web Server Suite v3.18 containing Apache v2.2.15.08 or earlier BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2011-0419 (AV:N/AC:M/Au:N/C:N/I:N/A:P) 4.3 CVE-2011-3192 (AV:N/AC:L/Au:N/C:N/I:N/A:C) 7.8 CVE-2011-3348 (AV:N/AC:M/Au:N/C:N/I:N/A:P) 4.3 =========================================================== Information on CVSS is documented in HP Customer Notice: HPSN-2008-002 RESOLUTION This bulletin will be revised when additional information becomes available. HP has provided the following preliminary software updates to resolve this vulnerability. The updates are available for download from the following location ftp://srt10626:Secure12@ftp.usa.hp.com/ or via HTTPS Access: https://ftp.usa.hp.com/hprc with username srt10626 and password Secure12 HP-UX Web Server Suite (WSS) v3.18 containing Apache v2.2.15.08.01 HP-UX 11i Releases / Apache Depot name B.11.23 B.11.31 (32-bit) / IA-PA-32.depot B.11.23 B.11.31 (64-bit) / IA-PA-64.depot NOTE: HP-UX Web Server Suite (WSS) v2.33 is not affected by this. MANUAL ACTIONS: Yes - Update Install HP-UX Web Server Suite v3.18 containing v2.2.15.08.01 or subsequent. PRODUCT SPECIFIC INFORMATION HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HP and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see https://www.hp.com/go/swa The following text is for use by the HP-UX Software Assistant. AFFECTED VERSIONS HP-UX Web Server Suite v3.18 HP-UX B.11.23 HP-UX B.11.31 ================== hpuxws22APCH32.APACHE hpuxws22APCH32.APACHE2 hpuxws22APCH32.AUTH_LDAP hpuxws22APCH32.AUTH_LDAP2 hpuxws22APCH32.MOD_JK hpuxws22APCH32.MOD_JK2 hpuxws22APCH32.MOD_PERL hpuxws22APCH32.MOD_PERL2 hpuxws22APCH32.PHP hpuxws22APCH32.PHP2 hpuxws22APCH32.WEBPROXY hpuxws22APCH32.WEBPROXY2 hpuxws22APACHE.APACHE hpuxws22APACHE.APACHE2 hpuxws22APACHE.AUTH_LDAP hpuxws22APACHE.AUTH_LDAP2 hpuxws22APACHE.MOD_JK hpuxws22APACHE.MOD_JK2 hpuxws22APACHE.MOD_PERL hpuxws22APACHE.MOD_PERL2 hpuxws22APACHE.PHP hpuxws22APACHE.PHP2 hpuxws22APACHE.WEBPROXY hpuxws22APACHE.WEBPROXY2 action: install revision B.2.2.15.08.01 or subsequent END AFFECTED VERSIONS HISTORY Version:1 (rev.1) - 26 September 2011 Initial release Third Party Security Patches: Third party security patches that are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy. Support: For further information, contact normal HP Services support channel. Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins Security Bulletin List: A list of HP Security Bulletins, updated periodically, is contained in HP Security Notice HPSN-2011-001: https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c02964430 3C = 3COM 3P = 3rd Party Software GN = HP General Software HF = HP Hardware and Firmware MP = MPE/iX MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PI = Printing and Imaging PV = ProCurve ST = Storage Software TU = Tru64 UNIX UX = HP-UX Copyright 2011 Hewlett-Packard Development Company, L.P. Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits;damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAk6BBLEACgkQ4B86/C0qfVm4CACfVi1NP6JFycNeJ1OZHPsIyXB1 d1oAn1bBizdn88C0MvGNNoc8KZ9ZydIV =q33p -----END PGP SIGNATURE----- . HP System Management Homepage (SMH) before v7.0 running on Linux and Windows. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hp.com. This issue only affects the Debian 5.0 oldstable/lenny distribution. For the oldstable distribution (lenny), these problems have been fixed in version 2.2.9-10+lenny10. For the stable distribution (squeeze), this problem has been fixed in version 2.2.16-6+squeeze2. For the testing distribution (wheezy), this problem will be fixed soon. For the unstable distribution (sid), this problem has been fixed in version 2.2.19-2. We recommend that you upgrade your apache2 packages. The new version number for the oldstable distribution is 2.2.6-02-1+lenny5. In the stable distribution, apache2-mpm-itk has the same version number as apache2. HP Secure Web Server (SWS) for OpenVMS V2.2 and earlier

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

arbitrary, csrf

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

HP

SOURCES

LAST UPDATE DATE

2026-08-28T20:54:48.285000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE