OpenSSL is an open source toolkit that implements the Secure Socket Layer (SSL) versions 2 and 3 protocols, the Transport Layer Security (TLS) version 1 protocol as well as a general use cryptography library.
A vulnerability has been discovered in the SSL_get_shared_ciphers() function which could allow an attacker to send a specially crafted list of ciphers causing a buffer overrun. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-5135 to this issue.
Several side-channel attacks have been reported in SSL. A local attacker could potentially exploit this vulnerability to obtain RSA private keys being used on a system. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2007-3108 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 Communication Manager||CM 3.0||Low||See recommended actions below. This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy|
|Avaya EMMC||1.017, 1.021||Low||See recommended actions below. This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy|
|Avaya CCS/SES||3.1 and earlier||Low||See recommended actions below. This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy|
|Avaya AES||AES 3.1.4 and earlier||Low|
For all system products which use vulnerable versions of OpenSSL, Avaya recommends that customers restrict local and network access to the server. This restriction should be enforced through the use of physical security, firewalls, ACLs, VPNs, and other generally-accepted networking practices until such time as an update becomes available and can be installed.
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.
|CVLAN||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the CVLAN application. The CVLAN application does not require the software described in this advisory.|
|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. The IMS application does not require the software described in this advisory.|
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 - November 26, 2007 - Initial Statement issued.
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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