Vulnerability Monitor

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CVE-2006-5755

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.

Published

2006-12-31T05:00:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.9 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 2.6.17	Yes

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9 ([email protected])
http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9 ([email protected])
http://secunia.com/advisories/24098 ([email protected])
http://secunia.com/advisories/25691 ([email protected])
http://secunia.com/advisories/26620 ([email protected])
http://secunia.com/advisories/26994 ([email protected])
http://secunia.com/advisories/32485 ([email protected])
http://www.debian.org/security/2007/dsa-1381 ([email protected])
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.18 ([email protected])
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.18-git13.log ([email protected])
http://www.mandriva.com/security/advisories?name=MDKSA-2007:171 ([email protected])
http://www.redhat.com/support/errata/RHSA-2008-0957.html ([email protected])
http://www.securityfocus.com/archive/1/471457 ([email protected])
http://www.securityfocus.com/bid/26060 ([email protected])
http://www.ubuntu.com/usn/usn-416-1 ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9554 ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9 (af854a3a-2127-422b-91ae-364da2661108)
http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/24098 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/25691 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/26620 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/26994 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/32485 (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2007/dsa-1381 (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.18 (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.18-git13.log (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDKSA-2007:171 (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2008-0957.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/471457 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/26060 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/usn-416-1 (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9554 (af854a3a-2127-422b-91ae-364da2661108)