Security Bulletin: Information disclosure in IBM HTTP Server (CVE-2017-12613)

Security Bulletin

Summary

There is a potential information disclosure in IBM HTTP Server used by WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2017-12613
DESCRIPTION: Apache Portable Runtime APR could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds array dereference in apr_time_exp*() functions. By using an invalid month field value, a remote attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service.
CVSS Base Score: 9.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/134049 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 9.0
Version 8.5
Version 8.0
Version 7.0

Remediation/Fixes

For V9.0.0.0 through 9.0.0.6:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI90598

--OR--
· Apply Fix Pack 9.0.0.7 or later.

For V8.5.0.0 through 8.5.5.13:

· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI90598

--OR--
· Apply Fix Pack 8.5.5.14 or later.

For V8.0.0.0 through 8.0.0.14:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI90598

--OR--
· Apply Fix Pack 8.0.0.15 or later.

For V7.0.0.0 through 7.0.0.43:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PI90598

--OR--
· Apply Fix Pack 7.0.0.45 or later.

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Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

15 March 2018: 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

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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Tips

Security Bulletin: Information disclosure in IBM HTTP Server (CVE-2017-12613)