ID

VAR-200609-1274

CVE

CVE-2006-3738

TITLE

OpenSSL SSLv2 client code fails to properly check for NULL

DESCRIPTION

Buffer overflow in the SSL_get_shared_ciphers function in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions has unspecified impact and remote attack vectors involving a long list of ciphers. A flaw in the OpenSSL library could allow a remote attacker to cause a denial of service on an affected application. The Oracle SYS.DBMS_AQ package is vulnerable to PL/SQL injection. This vulnerability may allow a remote, authenticated attacker to execute arbitrary PL/SQL commands on a vulnerable Oracle installation. Multiple RSA implementations fail to properly handle RSA signatures. This vulnerability may allow an attacker to forge RSA signatures. OpenSSL Library utility functions 1 First, output a list of encryption algorithms used for communication as a readable character string. SSL_get_shared_ciphers() there is. SSL_get_shared_ciphers() There is a buffer overflow vulnerability in the processing of.OpenSSL Any code may be executed with the privileges of the application that uses it. Successfully exploiting this issue may result in the execution of arbitrary machine code in the context of applications that use the affected library. Failed exploit attempts may crash applications, denying service to legitimate users. Oracle has released a Critical Patch Update advisory for January 2007 to address these vulnerabilities for supported releases. Earlier unsupported releases are likely to be affected by these issues as well. The issues identified by the vendor affect all security properties of the Oracle products and present local and remote threats. Various levels of authorization are needed to leverage some of the issues, but other issues do not require any authorization. The most severe of the vulnerabilities could possibly expose affected computers to complete compromise. Background ========== OpenSSL is an implementation of the Secure Socket Layer and Transport Layer Security protocols. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/openssl < 0.9.8e-r3 >= 0.9.8e-r3 Description =========== Moritz Jodeit reported an off-by-one error in the SSL_get_shared_ciphers() function, resulting from an incomplete fix of CVE-2006-3738. A flaw has also been reported in the BN_from_montgomery() function in crypto/bn/bn_mont.c when performing Montgomery multiplication. Impact ====== A remote attacker sending a specially crafted packet to an application relying on OpenSSL could possibly execute arbitrary code with the privileges of the user running the application. A local attacker could perform a side channel attack to retrieve the RSA private keys. Workaround ========== There is no known workaround at this time. Resolution ========== All OpenSSL users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8e-r3" References ========== [ 1 ] CVE-2006-3738 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 [ 2 ] CVE-2007-3108 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3108 [ 3 ] CVE-2007-5135 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-06.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 2007 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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c00967144 Version: 1 HPSBTU02207 SSRT061213, SSRT061239, SSRT071304 rev.1 - HP Tru64 UNIX SSL and BIND Remote Arbitrary Code Execution or Denial of Service (DoS) NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2007-04-12 Last Updated: 2007-04-12 Potential Security Impact: Remote unauthenticated arbitrary code execution or Denial of Service (DoS) Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY Potential security vulnerabilities have been identified on the Secure Sockets Layer (SSL) and BIND running on the HP Tru64 UNIX Operating System that may allow a remote attacker to execute arbitrary code or cause a Denial of Service (DoS). References: VU#547300, VU#386964, CAN-2006-4339, CVE-2006-2937, CVE-2006-2940, CVE-2006-3738 (SSL) VU#697164, VU#915404, CVE-2007-0493, CVE-2007-0494 (BIND) SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. The following supported software versions are affected: HP Tru64 UNIX v 5.1B-4 (SSL and BIND) HP Tru64 UNIX v 5.1B-3 (SSL and BIND) HP Tru64 UNIX v 5.1A PK6 (BIND) HP Tru64 UNIX v 4.0G PK4 (BIND) HP Tru64 UNIX v 4.0F PK8 (BIND) Internet Express (IX) v 6.6 BIND (BIND) HP Insight Management Agents for Tru64 UNIX patch v 3.5.2 and earlier (SSL) BACKGROUND RESOLUTION HP has released the following Early Release Patch kits (ERPs) publicly for use by any customer. The ERP kits use dupatch to install and will not install over any Customer Specific Patches (CSPs) that have file intersections with the ERP. A new patch version for HP Insight Management Agents for Tru64 UNIX is also available that addresses the potential vulnerabilities. The fixes contained in the ERP kits will be available in the following mainstream releases: -Targeted for availability in HP Tru64 UNIX v 5.1B-5 -Internet Express (IX) v 6.7 -HP Insight Management Agents for Tru64 UNIX patch v 3.6.1 (already available) HP Tru64 UNIX Version 5.1B-4 ERP Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001167-V51BB27-ES-20070321 Name: T64KIT1001167-V51BB27-ES-20070321 MD5 Checksum: a697a90bd0b1116b6f27d1100bbf81fd HP Tru64 UNIX Version 5.1B-3 ERP Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001163-V51BB26-ES-20070315 Name: T64KIT1001163-V51BB26-ES-20070315 MD5 Checksum: d376d403176f0dbe7badd4df4e91c126 HP Tru64 UNIX Version 5.1A PK6 ERP Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001160-V51AB24-ES-20070314 Name: T64KIT1001160-V51AB24-ES-20070314 MD5 Checksum: 7bb43ef667993f7c4711b6cf978e0aa7 HP Tru64 UNIX Version 4.0G PK4 ERP Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT1001166-V40GB22-ES-20070316 Name: T64KIT1001166-V40GB22-ES-20070316 MD5 Checksum: a446c39169b769c4a03c654844d5ac45 HP Tru64 UNIX Version 4.0F PK8 ERP Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=DUXKIT1001165-V40FB22-ES-20070316 Name: DUXKIT1001165-V40FB22-ES-20070316 MD5 Checksum: 718148c87a913536b32a47af4c36b04e HP Insight Management Agents for Tru64 UNIX patch version 3.6.1 (for kit CPQIIM360) Location: http://h30097.www3.hp.com/cma/patches.html Name: CPQIM360.SSL.01.tar.gz MD5 Checksum: 1001a10ab642461c87540826dfe28652 Internet Express (IX) v 6.6 BIND Note: Customers who use Internet Express (IX) v 6.6 BIND should install the BIND 9.2.8 patch from the ERP kit appropriate for their base operating system version. PRODUCT SPECIFIC INFORMATION The HP Tru64 UNIX v 5.1B-3 and v 5.1B-4 ERP kits distribute two patches: -OpenSSL 0.9.8d -BIND 9.2.8 built with OpenSSL 0.9.8d Note: HP Tru64 UNIX v 5.1A, v 4.0G, and v 4.0F releases did not distribute OpenSSL and so their ERP kits provide only the BIND 9.2.8 patch that has been built with OpenSSL 0.9.8d Customers who have been using OpenSSL on HP Tru64 UNIX v 5.1B-3 and v 5.1B-4 should install the OpenSSL patch from the ERP kit appropriate for their base operating system version. The HP Insight Management Agents for Tru64 UNIX patch contains OpenSSL 0.9.8d and is applicable for HP Tru64 UNIX v 5.1A, v 5.1B-3, and v 5.1B-4. HISTORY Version:1 (rev.1) - 12 April 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/AwUBRiUNQ+AfOvwtKn1ZEQLdQgCdEpF7dyJMCx0S6FBh8zEs/1hrKIcAnjB3 gP3DWRATNULxgPyX4sSP1HEm =/EIA -----END PGP SIGNATURE----- . ASN.1 Denial of Service Attack (1/2) During the parsing of certain invalid ASN.1 structures an error condition is mishandled. This can result in an infinite loop which consumes system memory. The Common Vulnerabilities and Exposures (CVE) project assigned the id CVE-2006-2937 [2] to the problem. 2. ASN.1 Denial of Service Attack (2/2) Certain types of public key can take disproportionate amounts of time to process. This could be used by an attacker in a denial of service attack. The Common Vulnerabilities and Exposures (CVE) project assigned the id CVE-2006-2940 [3] to the problem. 3. SSL_get_shared_ciphers() Buffer Overflow A buffer overflow was discovered in the SSL_get_shared_ciphers() utility function. The Common Vulnerabilities and Exposures (CVE) project assigned the id CVE-2006-3780 [4] to the problem. 4. SSLv2 Client Crash A flaw in the SSLv2 client code was discovered. The Common Vulnerabilities and Exposures (CVE) project assigned the id CVE-2006-4343 [5] to the problem. ________________________________________________________________________ References: [0] http://www.openssl.org/news/secadv_20060928.txt [1] http://www.openssl.org/ [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2937 [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2940 [4] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 [5] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4343 ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <openpkg@openpkg.org>" (ID 63C4CB9F) of the OpenPKG project which you can retrieve from http://pgp.openpkg.org and hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org for details on how to verify the integrity of this advisory. 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

AFFECTED PRODUCTS