IBM Security Access Manager for Web High CPU utilization

ibm-gskit-cve20140963-dos (92844) The risk level is classified as HighHigh Risk

Description:

Multiple IBM products are affected by a problem with the handling of certain SSL messages. The TLS implementation can, under very specific conditions, cause CPU utilization to rapidly increase. The situation occurs only in a certain error case that causes a single thread to begin looping. If this happens multiple times, more threads will begin to loop and an increase in CPU utilization will be seen. This increase could ultimately result in CPU exhaustion and unresponsiveness of the products and other software running on the affected system.

*CVSS:

Base Score: 7.1
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 5.3
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to IBM Security Bulletin 1672192 for patch, upgrade or suggested workaround information. See References.

References:

  • IBM Security Bulletin 1672189: IBM Tivoli Access Manager High CPU utilization (CVE-2014-0963).
  • IBM Security Bulletin 1672192: IBM Security Access Manager for Web High CPU utilization (CVE-2014-0963).
  • BID-67238: IBM Security Access Manager for Web CVE-2014-0963 Remote Denial of Service Vulnerability
  • CVE-2014-0963: The Reverse Proxy feature in IBM Global Security Kit (aka GSKit) in IBM Security Access Manager (ISAM) for Web 7.0 before 7.0.0-ISS-SAM-IF0006 and 8.0 before 8.0.0.3-ISS-WGA-IF0002 allows remote attackers to cause a denial of service (infinite loop) via crafted SSL messages.

Platforms Affected:

  • IBM Security Access Manager for Web 7.0
  • IBM Security Access Manager for Web 8.0
  • IBM Tivoli Access Manager 5.1
  • IBM Tivoli Access Manager 6.0.0
  • IBM Tivoli Access Manager 6.1.0
  • IBM Tivoli Access Manager 6.1.1

Reported:

May 06, 2014

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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