CVE-2006-6730
First published: Tue Dec 26 2006(Updated: )
OpenBSD and NetBSD permit usermode code to kill the display server and write to the X.Org /dev/xf86 device, which allows local users with root privileges to reduce securelevel by replacing the System Management Mode (SMM) handler via a write to an SMRAM address within /dev/xf86 (aka the video card memory-mapped I/O range), and then launching the new handler via a System Management Interrupt (SMI), as demonstrated by a write to Programmed I/O port 0xB2.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NetBSD current | =2.0.4 | |
| OpenBSD |
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Reference Links
- http://www.securityfocus.com/archive/1/454510/100/0/threaded
- http://www.securityfocus.com/archive/1/454706/100/0/threaded
- http://lists.freedesktop.org/archives/xorg/2004-June/000927.html
- http://www.cansecwest.com/slides06/csw06-duflot.ppt
- http://www.ssi.gouv.fr/fr/sciences/fichiers/lti/cansecwest2006-duflot-paper.pdf
- http://www.securityfocus.com/archive/1/454379/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2006-6730?
CVE-2006-6730 is considered a high severity vulnerability due to its potential impact on system security.
How do I fix CVE-2006-6730?
To mitigate CVE-2006-6730, ensure that your system is updated to the latest secure versions of OpenBSD or NetBSD which address this vulnerability.
What types of systems are affected by CVE-2006-6730?
CVE-2006-6730 affects certain versions of OpenBSD and NetBSD systems.
Can CVE-2006-6730 be exploited remotely?
CVE-2006-6730 is a local privilege escalation vulnerability, meaning it cannot be exploited remotely.
Who is primarily at risk from CVE-2006-6730?
Local users with root privileges on affected systems are primarily at risk from CVE-2006-6730.
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