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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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