ID

VAR-200609-1512

CVE

CVE-2006-4339

TITLE

OpenSSL SSLv2 client code fails to properly check for NULL

DESCRIPTION

OpenSSL before 0.9.7, 0.9.7 before 0.9.7k, and 0.9.8 before 0.9.8c, when using an RSA key with exponent 3, removes PKCS-1 padding before generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents OpenSSL from correctly verifying X.509 and other certificates that use PKCS #1. A flaw in the OpenSSL library could allow a remote attacker to cause a denial of service on an affected application. Multiple RSA implementations fail to properly handle RSA signatures. This vulnerability may allow an attacker to forge RSA signatures. An attacker may exploit this issue to sign digital certificates or RSA keys and take advantage of trust relationships that depend on these credentials, possibly posing as a trusted party and signing a certificate or key. All versions prior to and including OpenSSL 0.9.7j and 0.9.8b are affected by this vulnerability. Updates are available. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c01118771 Version: 1 HPSBMA02250 SSRT061275 rev.1 - HP System Management Homepage (SMH) for Linux and Windows, Remote Execution of Arbitrary Code and Denial of Service (DoS) NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2007-08-01 Last Updated: 2007-08-01 Potential Security Impact: Remote execution of arbitrary code and Denial of Service (DoS) Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY Potential security vulnerabilities have been identified HP System Management Homepage (SMH) for Linux and Windows. These vulnerabilities could by exploited remotely resulting in the execution of arbitrary code or a Denial of Service (DoS). References: CVE-2006-2937, CVE-2006-2940, CVE-2006-3738, CVE-2006-3747, CVE-2006-4339, CVE-2006-4343 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP System Management Homepage (SMH) versions prior to 2.1.7 running on Linux and Windows. BACKGROUND RESOLUTION HP has provided System Management Homepage (SMH) version 2.1.7 or subsequent for each platform to resolve this issue. A more recent version is available: System Management Homepage (SMH) version 2.1.8 HP System Management Homepage for Linux (x86) version 2.1.8-177 can be downloaded from http://h18023.www1.hp.com/support/files/server/us/download/26864.html HP System Management Homepage for Linux (AMD64/EM64T) version 2.1.8-177 can be downloaded from http://h18023.www1.hp.com/support/files/server/us/download/26866.html HP System Management Homepage for Windows version 2.1.8-179 can be downloaded from http://h18023.www1.hp.com/support/files/server/us/download/26977.html PRODUCT SPECIFIC INFORMATION HISTORY: Version:1 (rev.1) - 1 August 2007 Initial Release Third Party Security Patches: Third party security patches which 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 It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information. To get the security-alert PGP key, please send an e-mail message as follows: To: security-alert@hp.com Subject: get key Subscribe: To initiate a subscription to receive future HP Security Bulletins via Email: http://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA&langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC On the web page: ITRC security bulletins and patch sign-up Under Step1: your ITRC security bulletins and patches - check ALL categories for which alerts are required and continue. Under Step2: your ITRC operating systems - verify your operating system selections are checked and save. To update an existing subscription: http://h30046.www3.hp.com/subSignIn.php Log in on the web page: Subscriber's choice for Business: sign-in. On the web page: Subscriber's Choice: your profile summary - use Edit Profile to update appropriate sections. To review previously published Security Bulletins visit: http://www.itrc.hp.com/service/cki/secBullArchive.do * The Software Product Category that this Security Bulletin relates to is represented by the 5th and 6th characters of the Bulletin number in the title: GN = HP General SW MA = HP Management Agents MI = Misc. 3rd Party SW MP = HP MPE/iX NS = HP NonStop Servers OV = HP OpenVMS PI = HP Printing & Imaging ST = HP Storage SW TL = HP Trusted Linux TU = HP Tru64 UNIX UX = HP-UX VV = HP VirtualVault System management and security procedures must be reviewed frequently to maintain system integrity. HP is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions. "HP is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HP products the important security information contained in this Bulletin. HP recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HP does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HP will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HP disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement." \xa9Copyright 2007 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: PGP 8.1 iQA/AwUBRrIKieAfOvwtKn1ZEQJUJACfakfLP0u32ySuj4KuXa+P2KgKODEAoIag 4otTq1h8U9Q2sa0noibOymby =jOXf -----END PGP SIGNATURE----- . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200610-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Mozilla Network Security Service (NSS): RSA signature forgery Date: October 17, 2006 Bugs: #148283 ID: 200610-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== NSS fails to properly validate PKCS #1 v1.5 signatures. Background ========== The Mozilla Network Security Service is a library implementing security features like SSL v.2/v.3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME and X.509 certificates. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/nss < 3.11.3 >= 3.11.3 Description =========== Daniel Bleichenbacher discovered that it might be possible to forge signatures signed by RSA keys with the exponent of 3. This impacts any software using the NSS library, like the Mozilla products Firefox, Thunderbird and Seamonkey. Workaround ========== There is no known workaround at this time. Resolution ========== All NSS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/nss-3.11.3" Note: As usual after updating a library, you should run 'revdep-rebuild' (from the app-portage/gentoolkit package) to ensure that all applications linked to it are properly rebuilt. References ========== [ 1 ] CVE-2006-4339 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4339 [ 2 ] CVE-2006-4340 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4340 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200610-06.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2006 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5

AFFECTED PRODUCTS