The latest security information on Intel® products.
Intel Keyboard Buffer Information Disclosure Vulnerability
| Intel ID: | INTEL-SA-00016 |
|---|---|
| Product family: | Intel® Desktop and Intel® Mobile Boards |
| Impact of vulnerability: | Information Disclosure |
| Severity rating: | Moderate |
| Original release: | Aug 25, 2008 |
| Last revised: | Aug 25, 2008 |
Summary:
Specific Intel BIOS's fail to sanitize user input entered during the Power On Self Test, POST, process. Under certain situations this issue could potentially result in a disclosure of information.
Description:
A new BIOS is available on select Intel motherboards to ensure proper sanitization of user input entered during the Power On Self Test, POST, process. This new BIOS will properly clear user input before the launch of the Operating System. This new BIOS will prevent exploitation by a malicious local user or software running on the local system to expose pre-execution passwords.
Affected products:
DQ35JO, DQ35MP, DG35EC, DP35DP, DG33FB, DG33BU, DG33TL, DX38BT, MGM965TW (Mobile) and MGM965JB (Mobile).
Recommendations:
Recommendations:
While Intel is not aware of any use of the vulnerability described in this advisory, Intel has made changes to the BIOS firmware of affected products to prevent this issue.
To determine if you are at risk follow these steps:
1. Reboot your system.
2. Hit F2 to enter setup
3. The BIOS version will be on the first setup page displayed.
4. Look at the first portion of the BIOS version. For example - JOQ3510J.86A.0942.2007.1210.2204.
5. Then look at the date string section - JOQ3510J.86A.0942.2007.1210.2204.
6. If your BIOS has one of the numbers listed in the first section below and the date code section is older you need to update your BIOS.
For the Intel products listed in the Affected Products table, Intel has made available updated BIOS firmware per the table below. The updated BIOS firmware is available at http://support.intel.com. From this web page select 'Download Center'. On the 'Search Downloads' line, enter the affected product name (for example DG33BU) and click search. Click on the found product, select your operating system and click 'Go'. Next click on the BIOS title, then follow the instructions on the download page for downloading and installing the BIOS update. Several options are available. For detailed instructions on updating your BIOS refer to http://www.intel.com/support/motherboards/desktop/sb/CS-022312.htm.
Available BIOS Updates:
DQ35JO |
JOQ3510J.86A.0942.2008.0807.1958 |
|---|---|
DQ35MP |
JOQ3510J.86A.0942.2008.0807.1958 |
DP35DP |
DPP3510J.86A.0484.2008.0805.2031 |
DG33FB |
DPP3510J.86A.0484.2008.0805.2031 |
DG33BU |
DPP3510J.86A.0484.2008.0805.2031 |
DG33TL |
DPP3510J.86A.0484.2008.0805.2031 |
MGM965TW (Mobile) |
TW96510J.86A.1157.2008.0730.1429 |
D945GCPE |
PE94510M.86A.0065.2008.0801.1803 |
DX38BT |
BTX3810J.86A.1814.2008.0807.2334 |
Acknowledgements:
Intel would like to thank the following for working with us: Jonathan Brossard, http://www.ivizsecurity.com/index.php, Lead Security Engineer iViZ Techno Solutions Pvt. Ltd.
Legal Notices and Disclaimers
Intel provides these materials as-is, with no express or implied warranties.
All products, dates, and figures specified are preliminary based on current expectations, and are subject to change without notice.
Intel products and services described may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request.
Intel products that have met their End of Servicing Updates may no longer receive functional and security updates. For additional details on support and servicing, please see this help article.
Intel technologies’ features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No product or component can be absolutely secure. Check with your system manufacturer or retailer or learn more at http://intel.com.
Some results have been estimated or simulated using internal Intel analysis or architecture simulation or modeling, and provided to you for informational purposes. Any differences in your system hardware, software or configuration may affect your actual performance.
© Intel Corporation. Intel, the Intel logo, and other Intel marks are trademarks of Intel Corporation or its subsidiaries United States and other countries. Other names and brands may be claimed as the property of others.
Report a Vulnerability
If you have information about a security issue or vulnerability with an Intel branded product or technology, please send an e-mail to secure@intel.com. Encrypt sensitive information using our PGP public key.
Please provide as much information as possible, including:
- The products and versions affected
- Detailed description of the vulnerability
- Information on known exploits
A member of the Intel Product Security Team will review your e-mail and contact you to collaborate on resolving the issue. For more information on how Intel works to resolve security issues, see:
For issues related to Intel's external web presence (Intel.com and related subdomains), please contact Intel's External Security Research team.
Need product support?
If you...
- Have questions about the security features of an Intel product
- Require technical support
- Want product updates or patches
Please visit Support & Downloads.