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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.1285
          Security Bulletin: Vulnerabilities in Sametime Unified
          Telephony (CVE-2013-0169, CVE-2013-0166, CVE-2012-2686)
                             13 September 2013

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM Sametime Unified Telephony
Publisher:         IBM
Operating System:  Linux variants
                   OS X
                   Windows
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-0169 CVE-2013-0166 CVE-2012-2686

Reference:         ESB-2013.0183
                   ESB-2013.0161

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21646460

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

Flash (Alert)

Document information
IBM Sametime Unified Telephony

Software version:
8.5.2

Operating system(s):
Linux, Mac OS X, Windows

Reference #:
1646460

Modified date:
2013-09-11

Abstract

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

Content

VULNERABILITY DETAILS


CVE ID: CVE-2013-0169

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.

CVSS Base Score: 4.3 
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81902 
CVSS Environmental Score*: Undefined 
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)


CVE ID: CVE-2013-0166

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.

CVSS Base Score: 5 
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81904 for the 
current score 
CVSS Environmental Score*: Undefined 
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)


CVE ID: CVE-2012-2686

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 

CVE-2013-0169
http://xforce.iss.net/xforce/xfdb/81902
CVE-2013-0166
http://xforce.iss.net/xforce/xfdb/81904
CVE-2012-2686
http://xforce.iss.net/xforce/xfdb/81903


RELATED INFORMATION 
Complete CVSS Guide
CVSS Online Calculator V2
IBM Product Security Incident Response Program
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog


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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