The latest security information on Intel® products.
Intel® Desktop Board Buffer Overflow Local Privilege Escalation
Updated BIOS is available for Intel® Desktop Board products to correct a buffer overflow in the Bitmap processing code.
A buffer overflow in the Bitmap processing code for Intel® Desktop motherboards could potentially allow a local malicious attacker to perform a Denial Of Service or Privilege Escalation. Intel has released a BIOS update to mitigate this issue.
Intel® Desktop Board products:
DQ35JO, DQ35MP, DQ45CB, DQ45EK
While Intel is not aware of any use of the vulnerabilities described in this advisory, Intel has made changes to the BIOS of Intel® Desktop Boards to mitigate this issue. It is highly recommended to apply these updates to affected motherboards.
To determine if you need this BIOS update check the BIOS version string. If the number is older than listed in the chart for your motherboard below you need to apply the update.
1) During boot, enter the BIOS setup by pressing F2.
2) Check the Main menu.
3) The 4-digit number after the '86A' or '86I' is the current BIOS version, as in this example: MQ96510H.86A.1663.2007.0319.1957
4) Press Escape to exit BIOS Setup
For the Intel products listed in the Affected Products table, Intel has made available updated BIOS per the table below. The updated BIOS is available at http://www.intel.com/p/en_US/support. On the 'Advanced Search' line, enter the affected product name (for example DG33BU) and click Search Support. Click on the found product, make sure you're under the support tab and select BIOS updates. 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.
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, processors, chipsets, and desktop boards 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 technologies’ features and benefits depend on system configuration and may require enabled hardware, software or service activation. Performance varies depending on system configuration. No computer system can be absolutely secure. Check with your system manufacturer or retailer or learn more at https://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 and the Intel logo are trademarks of Intel Corporation in the United States and other countries.
*Other names and brands may be claimed as the property of others.
Copyright © Intel Corporation 2020
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 firstname.lastname@example.org. 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.