CVE-2006-5755

kernel: local denial of service due to NT bit leakage

Published Jan 9, 2007 CVSS 2.0 · 4.9 Medium EPSS < 1% KEV · Not listed
Description
Linux kernel before 2.6.18, when running on x86_64 systems, does not properly save or restore EFLAGS during a context switch, which allows local users to cause a denial of service (crash) by causing SYSENTER to set an NT flag, which can trigger a crash on the IRET of the next task.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-1381-1 New Linux 2.6.18 packages fix several vulnerabilities
Debian DSA Debian DSA DSA-1381-2 New Linux 2.6.18 packages fix several vulnerabilities
EUVD EUVD EUVD-2006-5739 Linux kernel before 2.6.18, when running on x86_64 systems, does not properly save or restore EFLAGS during a context switch, which allows local users to cause a denial of service (crash) by causing SYSENTER to set an NT flag, which can trigger a crash on the IRET of the next task.
Ubuntu USN Ubuntu USN USN-416-1 Linux kernel vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 7, 2024, 8:04 PM
Reserved
Nov 6, 2006, 12:00 AM
Status
Modified
Published
Dec 31, 2006, 5:00 AM
Modified
Jun 16, 2026, 10:31 PM
Severity
Low
Public date
Sep 26, 2006, 12:00 AM