(HP Issues Fix for HP-UX) OpenSSL ClientHello Parsing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID: 1025861|
SecurityTracker URL: http://securitytracker.com/id/1025861
(Links to External Site)
Date: Jul 29 2011
Denial of service via network, Disclosure of system information|
Fix Available: Yes Vendor Confirmed: Yes |
A vulnerability was reported in OpenSSL. A remote user can cause denial of service conditions. An application may be able to obtain potentially sensitive information.|
A remote user can send a specially crafted ClientHello handshake message to cause the target service to crash.
An application using OpenSSL may be able to obtain potentially sensitive information, such as an OCSP nonce extension, from memory.
Applications that act as a server and call SSL_CTX_set_tlsext_status_cb on the server's SSL_CTX (e.g., Apache httpd >= 2.3.3) are affected.
The vulnerability resides in 'ssl/t1_lib.c'.
Neel Mehta (Google) reported this vulnerability.
A remote user can cause denial of service conditions.|
An application may be able to obtain potentially sensitive information.
HP issues fix for HP-UX.|
B.11.11 PA (32 and 64):
B.11.23 (PA and IA):
B.11.31 (PA and IA):
The HP advisory is available at:
Vendor URL: www.openssl.org/news/secadv_20110208.txt (Links to External Site)
Access control error|
|Underlying OS: UNIX (HP/UX)|
|Underlying OS Comments: B.11.11, B.11.23, B.11.31|
This archive entry is a follow-up to the message listed below.|
Source Message Contents
Subject: [security bulletin] HPSBUX02689 SSRT100494 rev.2 - HP-UX Running OpenSSL, Remote Denial of Service (DoS)|
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SUPPORT COMMUNICATION - SECURITY BULLETIN
Document ID: c02896506
HPSBUX02689 SSRT100494 rev.2 - HP-UX Running OpenSSL, Remote Denial of Service (DoS)
NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.
Release Date: 2011-07-06
Last Updated: 2011-07-27
Potential Security Impact: Remote Denial of Service (DoS)
Source: Hewlett-Packard Company, HP Software Security Response Team
A potential security vulnerability has been identified with HP-UX OpenSSL. This vulnerability could be exploited remotely to create a Denial of Service (DoS).
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.11, B.11.23, B.11.31 running OpenSSL before vA.00.09.08r.
CVSS 2.0 Base Metrics
Reference Base Vector Base Score
CVE-2011-0014 (AV:N/AC:L/Au:N/C:N/I:N/A:P) 5.0
Information on CVSS is documented
in HP Customer Notice: HPSN-2008-002
HP has provided upgrades to resolve this vulnerability.
The upgrades are available from the following location.
HP-UX Release / Depot Name
B.11.11 PA (32 and 64) /
B.11.23 (PA and IA) /
B.11.31 (PA and IA) /
MANUAL ACTIONS: Yes - Update
Install OpenSSL A.00.09.08r 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:
The following text is for use by the HP-UX Software Assistant.
action: install revision A.00.09.08r.001 or subsequent
action: install revision A.00.09.08r.002 or subsequent
action: install revision A.00.09.08r.003 or subsequent
END AFFECTED VERSIONS
Version:1 (rev.1) 6 July 2011 Initial release
Version:2 (rev.2) 27 July 2011 New location for depots
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: email@example.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
Software Product Category: The Software Product Category is represented in the title by the two characters following HPSB.
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.
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