Security Bulletin: Vulnerabilities in Sametime Unified Telephony (CVE-2013-0169, CVE-2013-0166, CVE-2012-2686)

Flash (Alert)


Abstract

Sametime Unified Telephony (SUT) uses OpenSSL and needs to be updated to fix three security vulnerability issues found in OpenSSL

Content



VULNERABILITY DETAILS




DESCRIPTION

    The TLS protocol 1.1 and 1.2 and the DTLS protocol 1.0 and 1.2, as used in OpenSSL, OpenJDK, PolarSSL, and other products, do not properly consider timing side-channel attacks on a MAC check requirement during the processing of malformed CBC padding, which allows remote attackers to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data for crafted packets, aka the "Lucky Thirteen" issue.



DESCRIPTION
    OpenSSL before 0.9.8y, 1.0.0 before 1.0.0k, and 1.0.1 before 1.0.1d does not properly perform signature verification for OCSP responses, which allows remote OCSP servers to cause a denial of service (NULL pointer dereference and application crash) via an invalid key.



DESCRIPTION
    crypto/evp/e_aes_cbc_hmac_sha1.c in the AES-NI functionality in the TLS 1.1 and 1.2 implementations in OpenSSL 1.0.1 before 1.0.1d allows remote attackers to cause a denial of service (application crash) via crafted CBC data.

    CVSS Base Score: 5
    CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81903 for the current score
    CVSS Environmental Score*: Undefined
    CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

    Fix for the issue is provided for the Sametime Unified Telephony by upgrading the OpenSSL library in the product,



AFFECTED PRODUCTS

    Sametime Unified Telephony 8.5.2 and 8.5.2 IFR1.



REMEDIATION
    No remediation is known. Apply the provided fix.



FIX

    Contact IBM Support for a fix.



WORKAROUND(S) & MITIGATION(S)
    None



REFERENCES





RELATED INFORMATION




CHANGE HISTORY: September 10, 2013 Original Copy Published


    *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Flash.

    Note: According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.


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Document information


More support for:

IBM Sametime Unified Telephony

Software version:

8.5.2

Operating system(s):

Linux, Mac OS X, Windows

Reference #:

1646460

Modified date:

2013-09-11

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