Security Bulletin
Summary
There are multiple vulnerabilities in IBM® Runtime Environments Java™ Technology Edition, Versions 6, 7, 8 that are used by IBM Transformation Extender Hypervisor Edition. These issues were disclosed as part of the IBM Java SDK updates in January 2016 and include the vulnerability commonly referred to as “SLOTH”.
Vulnerability Details
CVEID: CVE-2016-0466
DESCRIPTION: An unspecified vulnerability in Oracle Java SE Java SE Embedded and Jrockit related to the JAXP component could allow a remote attacker to cause a denial of service resulting in a partial availability impact using unknown attack vectors.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109948 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVEID: CVE-2015-7575
DESCRIPTION: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials. This vulnerability is commonly referred to as “SLOTH”.
CVSS Base Score: 7.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N)
Affected Products and Versions
Transformation Extender Hypervisor Edition
- 9.0.0.0
Affected versions:
WebSphere Transformation Extender with Launcher Hypervisor Edition
- Affected versions:
- 8.4.1.0 - 8.4.1.3
- 8.4.0.0 - 8.4.0.5
Remediation/Fixes
Transformation Extender Hypervisor Edition 9.0.0.0 users should download and install the interim fix for APAR PI57205 from IBM Fix Central here.
Users on prior versions of WebSphere Transformation Extender with Launcher Hypervisor Edition should download and install the interim fix for APAR PI57205 from IBM Fix Central here.
Workarounds and Mitigations
To address CVE-2015-7575, users that are on Java 7 or Java 8 can address the issue by updating the /jre/lib/security/java.security file as follows (both steps are required):
· Add MD5 to the jdk.certpath.disabledAlgorithms property - for example jdk.certpath.disabledAlgorithms=MD2, RSA keySize < 1024, MD5
· Add MD5withRSA to the jdk.tls.disabledAlgorithms property - for example jdk.tls.disabledAlgorithms=SSLv3, RC4, DH keySize < 768, MD5withRSA
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References
Change History
23 February 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
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Product Synonym
ITX WTX
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Document Information
Modified date:
16 June 2018
UID
swg21976970