Security Bulletin: Information Disclosure in IBM HTTP Server and Denial of Service in Apache CXF used by IBM WebSphere Application Server for IBM Cloud (CVE-2017-12613, CVE-2017-12624)

Summary

There is a potential information disclosure in IBM HTTP Server used by WebSphere Application Server. There is a potential denial of service in Apache CXF that is 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)

CVEID: CVE-2017-12624**
DESCRIPTION:** Apache CXF is vulnerable to a denial of service. By using a specially crafted message attachment header, a remote attacker could exploit this vulnerability to cause the JAX-WS and JAX-RS services stop responding.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/135095 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

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

Remediation/Fixes

To patch an existing service instance refer to the IBM WebSphere Application Server bulletins listed below:

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

Security Bulletin: Denial of Service in Apache CXF used by WebSphere Application Server (CVE-2017-12624)

Alternatively, delete the vulnerable service instance and create a new instance.

Workarounds and Mitigations

none.

Monitor IBM Cloud Status for Future Security Bulletins

Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.

References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

04 April 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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