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AUSCERT External Security Bulletin Redistribution
ESB-2016.1851
Security Bulletin: Vulnerabilities in OpenSSL affect IBM PureApplication
System. (CVE-2016-2105, CVE-2016-2106, CVE-2016-2107,
CVE-2016-2108, CVE-2016-2109)
29 July 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM PureApplication System
Publisher: IBM
Operating System: AIX
Linux variants
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2016-2109 CVE-2016-2108 CVE-2016-2107
CVE-2016-2106 CVE-2016-2105
Reference: ASB-2016.0074
ESB-2016.1076
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21988007
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Security Bulletin: Vulnerabilities in OpenSSL affect IBM PureApplication
System. (CVE-2016-2105, CVE-2016-2106, CVE-2016-2107, CVE-2016-2108,
CVE-2016-2109)
Security Bulletin
Document information
More support for:
PureApplication System
Software version:
2.0, 2.0.0.1, 2.1.0.0, 2.1.0.1, 2.1.0.2, 2.1.1.0, 2.1.2.0, 2.1.2.1, 2.1.2.2,
2.2.0.0
Operating system(s):
AIX, Linux, Windows
Reference #:
1988007
Modified date:
2016-07-28
Summary
OpenSSL vulnerabilities were disclosed on May 3, 2016 by the OpenSSL Project.
OpenSSL is used by IBM PureApplication System. IBM PureApplication System has
addressed the applicable CVEs.
Vulnerability Details
CVEID:
CVE-2016-2105
DESCRIPTION:
OpenSSL is vulnerable to a heap-based buffer overflow, caused by improper
bounds checking by the EVP_EncodeUpdate() function. By sending an overly long
argument, a remote attacker could overflow a buffer and execute arbitrary
code on the system or cause the application to crash.
CVSS Base Score: 5.6
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112855
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:L/A:L)
CVEID:
CVE-2016-2106
DESCRIPTION:
OpenSSL is vulnerable to a heap-based buffer overflow, caused by improper
bounds checking by the EVP_EncryptUpdate() function. By sending an overly
long argument, a remote attacker could overflow a buffer and execute
arbitrary code on the system or cause the application to crash.
CVSS Base Score: 5.6
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112856
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:L/A:L)
CVEID:
CVE-2016-2107
DESCRIPTION:
OpenSSL could allow a remote attacker to obtain sensitive information, caused
by an error when the connection uses an AES CBC cipher and the server support
AES-NI. A remote user with the ability to conduct a man-in-the-middle attack
could exploit this vulnerability via the POODLE (Padding Oracle On Downgraded
Legacy Encryption) attack to decrypt traffic.
CVSS Base Score: 4.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112854
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N)
CVEID:
CVE-2016-2108
DESCRIPTION:
OpenSSL could allow a remote attacker to execute arbitrary code on the
system, caused by a buffer underflow when deserializing untrusted ASN.1
structures and later reserializes them. An attacker could exploit this
vulnerability to corrupt memory and trigger an out-of-bounds write and
execute arbitrary code on the system.
CVSS Base Score: 8.1
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112853
for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID:
CVE-2016-2109
DESCRIPTION:
OpenSSL is vulnerable to a denial of service, caused by a memory allocation
error. By reading specially crafted ASN.1 data from a BIO using functions
such as d2i_CMS_bio(), an attacker could exploit this vulnerability to
consume all available resources and exhaust memory.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/112857
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)
Affected Products and Versions
IBM PureApplication System V2.2
IBM PureApplication System V2.1
IBM PureApplication System V2.0
Remediation/Fixes
The PureSystems Manager on IBM PureApplication System is affected. The
solution is to upgrade the IBM PureApplication System to the following fix
level:
IBM PureApplication System V2.2: Upgrade to IBM PureApplication System V2.2.1
IBM PureApplication System V2.1: Upgrade to IBM PureApplication System
V2.1.2.3
IBM PureApplication System V2.0: Contact customer support for upgrade
options.
Workarounds and Mitigations
None
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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
28 July 2016: 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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