CA20090818-01: Security Notice for CA Host-Based Intrusion Prevention System

Issued: August 18, 2009

CA's support is alerting customers to a security risk with CA Host-Based Intrusion Prevention System. A vulnerability exists that can allow a remote attacker to cause a denial of service. CA has issued a patch to address the vulnerability.

The vulnerability, CVE-2009-2740, is due to the kmxIds.sys driver not correctly handling certain malformed packets. An attacker can send a malicious packet that will cause a kernel crash.

Risk Rating




Affected Products

CA Host-Based Intrusion Prevention System 8.1

Non-Affected Products

CA Host-Based Intrusion Prevention System 8.1 CF 1

How to determine if the installation is affected

  1. Using Windows Explorer, locate the file "kmxIds.sys". By default, the file is located in the "C:\Windows\system32\drivers\" directory.

  2. Right click on the file and select Properties.

  3. Select the Version tab.

  4. If the file version is less than indicated in the below table, the installation is vulnerable.

File Name Version Size (bytes) Date
kmxIds.sys 163,840 June 03, 2009, 12:32:22 PM



CA has issued the following patch to address the vulnerability.

CA Host-Based Intrusion Prevention System 8.1:
Install Cumulative Fix 1 RO10298.


CVE-2009-2740 - HIPS kmxIds.sys remote crash


CVE-2009-2740 - iViZ Security Research Team

Change History

Version 1.0: Initial Release

If additional information is required, please contact CA Support at

If you discover a vulnerability in CA products, please report your findings to the CA Product Vulnerability Response Team.

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