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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.2393
         Security Bulletin: Denial of service may affect IBM HTTP
                          Server (CVE-2015-1788)
                             11 September 2015

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM HTTP Server
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-1788  

Reference:         ASB-2015.0081
                   ASB-2015.0065
                   ESB-2015.2338
                   ESB-2015.2337
                   ESB-2015.2296
                   ESB-2015.2196
                   ESB-2015.2081
                   ESB-2015.2040
                   ESB-2015.2029
                   ESB-2015.2016
                   ESB-2015.1968

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21963362

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Security Bulletin: Denial of service may affect IBM HTTP Server 
(CVE-2015-1788)

Document information

More support for:

IBM HTTP Server

Software version:

8.0, 8.5, 8.5.5

Operating system(s):

AIX, HP-UX, Linux, Solaris, Windows

Reference #:

1963362

Modified date:

2015-09-10

Security Bulletin

Summary

Denial of service in GSKit may affect IBM HTTP Server, if using SSL with IBM 
HTTP Server. The IBM HTTP Server is used by IBM WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2015-1788

DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by an error
when processing an ECParameters structure over a specially crafted binary 
polynomial field. A remote attacker could exploit this vulnerability to cause
the application to enter into an infinite loop.

CVSS Base Score: 5

CVSS Temporal Score: See 
https://exchange.xforce.ibmcloud.com/vulnerabilities/103778 for the current 
score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

Affected Products and Versions

This vulnerability affects the following versions and releases of IBM HTTP 
Server (powered by Apache) component in all editions of WebSphere Application
Server and bundling products.

   Version 8.5.5

   Version 8.5

   Version 8.0

Remediation/Fixes

The recommended solutions is to apply the interim fix, Fix Pack or PTF 
containing APAR PI44809 for each named product as soon as practical.

For affected IBM HTTP Server for WebSphere Application Server:

For V8.5.0.0 through 8.5.5.6 Full Profile:

 Apply Interim Fix PI44809

- --OR--

 Apply Fix Pack 8.5.5.7 or later.

For V8.0 through 8.0.0.11:

 Apply Interim Fix PI44809

- --OR--

 Apply Fix Pack 8.0.0.12 or later (targeted availability 18 January 2016).

Workarounds and Mitigations

none

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support 
alerts like this.

References

Complete CVSS v2 Guide

On-line Calculator v2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

10 September 2015: original document 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.

- --------------------------END INCLUDED TEXT--------------------

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