OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols, as well as a full-strength, general purpose cryptography library.
It was discovered that OpenSSL did not always check the return value of the bn_wexpand() function. An attacker able to trigger a memory allocation failure in that function could cause an application using the OpenSSL library to crash or, possibly, execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2009-3245 to this issue.
A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update addresses this flaw by implementing the TLS Renegotiation Indication Extension, as defined in RFC 5746. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2009-3555 to this issue.
Refer to the following Knowledgebase article for additional details about the CVE-2009-3555 flaw: http://kbase.redhat.com/faq/docs/DOC-20491
A missing return value check flaw was discovered in OpenSSL, that could possibly cause OpenSSL to call a Kerberos library function with invalid arguments, resulting in a NULL pointer dereference crash in the MIT Kerberos library. In certain configurations, a remote attacker could use this flaw to crash a TLS/SSL server using OpenSSL by requesting Kerberos cipher suites during the TLS handshake. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-0433 to this issue.
More information about these vulnerabilities can be found in the security advisory issued by RedHat Linux:
|Product:||Affected Version(s):||Risk Level:||Actions:|
|Avaya Aura™ Application Enablement Services||5.2||Low||Upgrade to AES 5.2.2 or later.|
|Avaya IQ||5.0, 5.1||Low||Upgrade to IQ 5.2 or later.|
|Avaya Aura™ Session Manager||1.1, 5.2, 6.0||Low||Upgrade to SM 6.1 or later.|
|Avaya Aura™ System Manager||5.2, 6.0||Low||Upgrade SMGR 6.0 SP1 or later.|
|Avaya Aura™ System Platform||1.1||Low||Upgrade to SP 6.0 or later.|
|Avaya Voice Portal||5.0, 5.1||Low||Upgrade to VP 5.1.1 or later.|
Recommended Actions for System Products:
Avaya strongly recommends that customers follow networking and security best practices by implementing firewalls, ACLs, physical security or other appropriate access restrictions. Though Avaya believes such restrictions should always be in place; risk to Avaya's product and the surrounding network from this potential vulnerability may be mitigated by ensuring these practices are implemented until such time as a product update is available or the recommended action is applied. Further restrictions as deemed necessary based on the customer's security policies may be required during this interim period.
Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the underlying operating system or applications that come with the operating system. These vulnerabilities often do not impact the software-only product directly but may threaten the integrity of the underlying platform.
In the case of this advisory Avaya software-only products are not affected by the vulnerability directly but the underlying Linux platform may be. Customers should determine on which Linux operating system the product was installed and then follow that vendor's guidance.
|Avaya Aura™ Application Enablement Services 4.x/5.x||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the AES application.|
|CVLAN||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the CVLAN application.|
|Avaya Integrated Management Suite (IMS)||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the IMS application.|
|Avaya Aura™ Presence Services||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the PS application.|
|Avaya Aura™ System Manager 1.0||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the SMGR application.|
|Voice Portal||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the Voice Portal application.|
Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends that customers follow recommended actions supplied by RedHat Linux.
Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.
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V 1.0 - May 10, 2010 - Initial Statement issued.
V 2.0 - June 28, 2011 - Changed AES, IQ, SM, SMGR and VP affected versions and actions, SP actions and advisory status to final.
Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or firstname.lastname@example.org.
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