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AUSCERT External Security Bulletin Redistribution
ESB-2017.1959
Security Bulletin: Vulnerabilities in OpenSSL affect IBM
WebSphere Cast Iron Solution
8 August 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Cast Iron Solution
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-6306 CVE-2016-6304 CVE-2016-6303
CVE-2016-6302 CVE-2016-2183 CVE-2016-2182
CVE-2016-2181 CVE-2016-2179 CVE-2016-2178
CVE-2016-2177
Reference: ASB-2017.0115
ASB-2017.0106
ESB-2016.2238
ESB-2016.2116
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg22001821
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Security Bulletin: Vulnerabilities in OpenSSL affect IBM WebSphere Cast Iron Solution
Document information
More support for: WebSphere Cast Iron Cloud integration
Software version: 7.0.0, 7.0.0.1, 7.0.0.2, 7.5.0.0, 7.5.0.1, 7.5.1.0
Operating system(s): Firmware
Software edition: Physical, Virtual
Reference #: 2001821
Modified date: 07 August 2017
Security Bulletin
Summary
OpenSSL vulnerabilities were disclosed on September 22 and 26, 2016 by the
OpenSSL Project. OpenSSL is used by IBM WebSphere Cast Iron Solution. IBM
WebSphere Cast Iron Solution has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2016-6302
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the
failure to consider the HMAC size during validation of the ticket length
by the tls_decrypt_ticket function A remote attacker could exploit this
vulnerability using a ticket that is too short to cause a denial of service.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/117024 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-6304
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by multiple
memory leaks in t1_lib.c during session renegotiation. By sending an overly
large OCSP Status Request extension, a remote attacker could exploit this
vulnerability to consume all available memory resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/117110 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2016-6303
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an
integer overflow in the MDC2_Update function. By using unknown attack
vectors, a remote attacker could exploit this vulnerability to trigger an
out-of-bounds write and cause the application to crash.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/117023 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-2182
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused
by an out-of-bounds write in the TS_OBJ_print_bio function in
crypto/bn/bn_print.c. A remote attacker could exploit this vulnerability
using a specially crafted value to cause the application to crash.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/116342 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-2177
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the
incorrect use of pointer arithmetic for heap-buffer boundary checks. By
leveraging unexpected malloc behavior, a remote attacker could exploit
this vulnerability to trigger an integer overflow and cause the application
to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113890 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2016-2178
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by an error in the DSA implementation that allows
the following of a non-constant time codepath for certain operations. An
attacker could exploit this vulnerability using a cache-timing attack to
recover the private DSA key.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113889 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2016-2179
DESCRIPTION: OpenSSL is vulnerable to a denial of service. By sending
specially crafted DTLS record fragments to fill up buffer queues, a
remote attacker could exploit this vulnerability to open a large number
of simultaneous connections and consume all available memory resources.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/116343 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-6306
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by missing
message length checks when parsing certificates. A remote authenticated
attacker could exploit this vulnerability to trigger an out-of-bounds read
and cause a denial of service.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/117112 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-2181
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an
error in the DTLS replay protection implementation. By sending a specially
crafted sequence number, a remote attacker could exploit this vulnerability
to cause valid packets to be dropped.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/116344 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
CVEID: CVE-2016-2183
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by an error in the DES/3DES cipher, used as a part of the
SSL/TLS protocol. By capturing large amounts of encrypted traffic between
the SSL/TLS server and the client, a remote attacker able to conduct a
man-in-the-middle attack could exploit this vulnerability to recover the
plaintext data and obtain sensitive information. This vulnerability is
known as the SWEET32 Birthday attack.
CVSS Base Score: 3.7
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/116337 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
WebSphere Cast Iron v 7.5.1.0, v 7.5.0.1, v 7.5.0.0
WebSphere Cast Iron v 7.0.0.2, v 7.0.0.1, v 7.0.0.0
Remediation/Fixes
Product VRMF APAR Remediation/First Fix
Cast Iron Appliance 7.5.1.0
7.5.0.1
7.5.0.0 LI79478 iFix 7.5.1.0-CUMUIFIX-007
Cast Iron Appliance 7.0.0.2
7.0.0.1
7.0.0.0 LI79478 iFix 7.0.0.2-CUMUIFIX-034
Workarounds and Mitigations
None
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
None
Change History
07 August 2017: Original version 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 Security Bulletin.
Disclaimer
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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