Security Bulletin
Summary
Cross-protocol attack on TLS using SSLv2
Vulnerability Details
OpenSSL is used in IBM Storwize V7000 Unified for providing communication security by encrypting data being transmitted.
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)
Affected Products and Versions
IBM Storwize V7000 Unified
The product is affected when running code releases 1.5.0.0 to 1.5.2.3 and 1.6.0.0 to 1.6.0.1
Remediation/Fixes
A fix for these issues is in version 1.5.2.5 and 1.6.2.0 of IBM Storwize V7000 Unified. Customers running an affected version of IBM Storwize V7000 Unified should upgrade to 1.5.2.5 or 1.6.2.0 or a later version, so that the fix gets applied.
Latest Storwize V7000 Unified Software
Please contact IBM support for assistance in upgrading your system.
Workarounds and Mitigations
Workaround(s): None
Mitigation(s): Although IBM recommends that you install a level of code with a fix for this vulnerability, you can mitigate, although not eliminate, your risk until you have done so by ensuring that all users who have access to the system are authenticated by another security system such as a firewall.
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References
Change History
6 Jan 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
17 June 2018
UID
ssg1S1009699