CVE-2006-5755

Linux Kernel < 2.6.17 - Denial of Service via EFLAGS Context Switch Mismanagement

Title source: llm
STIX 2.1

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)

Core 16
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2008-0957.html
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/32485
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/24098
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26994
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDKSA-2007:171
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-416-1
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/26060
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/26620
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2007/dsa-1381
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/471457
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9554
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/25691

Scores

EPSS 0.0041
EPSS Percentile 33.8%

Details

Status published
Products (1)
linux/linux_kernel < 2.6.17
Published Dec 31, 2006
Tracked Since Feb 18, 2026