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Security Bulletin: Stack Buffer overflow may affect IBM HTTP Server (CVE-2015-4947)

Security Bulletin


Stack buffer overflow may affect IBM HTTP Server. The IBM HTTP Server is used by IBM WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2015-4947

DESCRIPTION: IBM HTTP Server Administration Server could be vulnerable to a stack buffer overflow, caused by improper handling of user input. An authenticated remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.5
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

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
  • Version 7.0
  • Version 6.1


The recommended solutions is to apply the interim fix, Fix Pack or PTF containing APAR PI44793 for each named product as soon as practical.
For affected IBM HTTP Server for WebSphere Application Server:

For V8.5.0.0 through Full Profile:

· Upgrade to a minimum of Fix Pack or later then apply Interim Fix PI44793

· Apply Fix Pack or later.

For V8.0 through

· Upgrade to a minimum of Fix Pack or later and then apply Interim Fix PI44793

· Apply Fix Pack or later.

For V7.0.0.0 through

· Upgrade to a minimum of Fix Pack or later and then apply Interim Fix PI44793

· Apply Fix Pack or later.

For V6.1.0.0 through
· Upgrade to Fix Pack and then apply cumulative Interim Fix PI45596, this includes the fix for PI44793

For unsupported versions IBM recommends upgrading to a fixed, supported version of the product.

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Change History

2 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.


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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Document Information

Modified date:
15 June 2018