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HistoryDec 18, 2019 - 2:26 p.m.

Security Bulletin: Vulnerability in IBM Java SDK affect IBM i (CVE-2015-7575).

2019-12-1814:26:38
www.ibm.com
28

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

Summary

There is a vulnerability in IBM® SDK Java™ Technology Edition that is used by IBM i. This vulnerability, commonly referred to as “SLOTH”, was disclosed as part of the IBM Java SDK updates in January 2016.

Vulnerability Details

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

Releases 6.1, 7.1 and 7.2 of IBM i are affected.

Remediation/Fixes

The issue can be fixed by applying a PTF to the IBM i Operating System and products.

Please see the Java document at this URL for the latest Java information for IBM i:
http://www.ibm.com/developerworks/ibmi/techupdates/java

Releases 6.1, 7.1 and 7.2 of IBM i are supported and will be fixed.

JDK60 PTFs:
Release 6.1 & 7.1:
(1) 32bit: SI59364
(2) 64bit: SI59367

Release 7.2:
(1) 32bit: SI59365
(2) 64bit: SI59366
**
JDK626 PTFs:**
Release 6.1 & 7.1:
(1) 32bit: SI59369
(2) 64bit: SI59372

Release 7.2:
(1) 32bit: SI59370
(2) 64bit: SI59371
**
JDK70 PTFs:**
Release 7.1:
(1) 32bit: SI59330 SI59336
(2) 64Bit: SI59331 SI59337

Release 7.2:
(1) 32bit: SI59332
(2) 64bit: SI59333
**
JDK71 PTFs:**
Release 7.1:
(1) 32bit: SI59325
(2) 64bit: SI59326

Release 7.2:
(1) 32bit: SI59327
(2) 64bit: SI59328
**
JDK80 PTFs:**
Release 7.1:
(1) 32bit: SI59313
(1) 64Bit: SI59314

Release 7.2:
(1) 32bit: SI59315
(2) 64bit: SI59316

_Important note: _IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

You should verify applying this configuration change does not cause any compatibility issues. Not disabling the MD5 signature hash will expose yourself to the attack described above. IBM recommends that you review your entire environment to identify other areas where you have enabled the MD5 signature hash and take appropriate mitigation and remediation actions.

CPENameOperatorVersion
ibm ieq7.1.0

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

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