CVE-2006-5755

Linux Kernel < 2.6.17 - Denial of Service

Title source: rule

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.

References (16)

[Patch] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9

[Various Sources] http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9

[Vendor Advisory] http://www.mandriva.com/security/advisories?name=MDKSA-2007:171

[Vendor Advisory] http://www.redhat.com/support/errata/RHSA-2008-0957.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/archive/1/471457

[Vendor Advisory] http://www.ubuntu.com/usn/usn-416-1

[Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.18

[Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.18-git13.log

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/26060

[Third Party Advisory] http://www.debian.org/security/2007/dsa-1381

[Third Party Advisory, VDB Entry] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9554

[Third Party Advisory] http://secunia.com/advisories/24098

[Third Party Advisory] http://secunia.com/advisories/25691

[Third Party Advisory] http://secunia.com/advisories/26620

[Third Party Advisory] http://secunia.com/advisories/26994

[Third Party Advisory] http://secunia.com/advisories/32485

Scores

EPSS 0.0005

EPSS Percentile 15.1%

Classification

Status draft

Affected Products (1)

linux/linux_kernel < 2.6.17

Timeline

Published Dec 31, 2006

Tracked Since Feb 18, 2026