Unrated severityNVD Advisory· Published Dec 24, 2009· Updated Apr 23, 2026
CVE-2009-4419
CVE-2009-4419
Description
Intel Q35, GM45, PM45 Express, Q45, and Q43 Express chipsets in the SINIT Authenticated Code Module (ACM), which allows local users to bypass the Trusted Execution Technology protection mechanism and gain privileges by modifying the MCHBAR register to point to an attacker-controlled region, which prevents the SENTER instruction from properly applying VT-d protection while an MLE is being loaded.
Affected products
5- cpe:2.3:h:intel:gm45_chipset:*:*:*:*:*:*:*:*
- cpe:2.3:h:intel:pm45_express_chipset:*:*:*:*:*:*:*:*
- cpe:2.3:h:intel:q35_chipset:*:*:*:*:*:*:*:*
- cpe:2.3:h:intel:q43_express_chipset:*:*:*:*:*:*:*:*
- cpe:2.3:h:intel:q45_chipset:*:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- secunia.com/advisories/37900nvdVendor Advisory
- security-center.intel.com/advisory.aspxnvdVendor Advisory
- www.vupen.com/english/advisories/2009/3618nvdVendor Advisory
- invisiblethingslab.com/resources/misc09/Another%20TXT%20Attack.pdfnvd
- osvdb.org/61248nvd
- theinvisiblethings.blogspot.com/2009/12/another-txt-attack.htmlnvd
- www.securityfocus.com/bid/37430nvd
- www.securitytracker.com/idnvd
- exchange.xforce.ibmcloud.com/vulnerabilities/54963nvd
News mentions
0No linked articles in our index yet.