{"id":"CVE-2006-6730","state":"PUBLISHED","title":"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 r","description":"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.","publishedAt":"2006-12-26T23:00:00.000Z","updatedAt":"2024-08-07T20:34:00.547Z","severity":null,"assigner":"mitre","products":["n/a 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