ghsa-83jc-959v-qgmc
Vulnerability from github
Published
2022-05-01 07:40
Modified
2022-05-01 07:40
Details
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.
{ "affected": [], "aliases": [ "CVE-2006-6730" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2006-12-26T23:28:00Z", "severity": "MODERATE" }, "details": "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.", "id": "GHSA-83jc-959v-qgmc", "modified": "2022-05-01T07:40:49Z", "published": "2022-05-01T07:40:49Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2006-6730" }, { "type": "WEB", "url": "http://lists.freedesktop.org/archives/xorg/2004-June/000927.html" }, { "type": "WEB", "url": "http://www.cansecwest.com/slides06/csw06-duflot.ppt" }, { "type": "WEB", "url": "http://www.securityfocus.com/archive/1/454379/100/0/threaded" }, { "type": "WEB", "url": "http://www.securityfocus.com/archive/1/454510/100/0/threaded" }, { "type": "WEB", "url": "http://www.securityfocus.com/archive/1/454706/100/0/threaded" }, { "type": "WEB", "url": "http://www.ssi.gouv.fr/fr/sciences/fichiers/lti/cansecwest2006-duflot-paper.pdf" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.