certfr_avis - CERTA-2012-AVI-633

CERTA-2012-AVI-633

Vulnerability from certfr_avis - Published: - Updated:

Une vulnérabilité a été corrigée dans le composant KVM du noyau linux. Elle concerne le bit « X86_CR4_OSXSAVE » et peut provoquer dans certaines conditions un déni de service du système.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Non détaillé.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

CVE-2012-4461 (GCVE-0-2012-4461)

Vulnerability from cvelistv5 – Published: 2013-01-22 23:00 – Updated: 2024-08-06 20:35

Summary

The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.

Severity ?

No CVSS data available.

CWE

Assigner

redhat

References

URL

Tags

	http://rhn.redhat.com/errata/RHSA-2013-0223.html	vendor-advisoryx_refsource_REDHAT
	http://www.securityfocus.com/bid/56414	vdb-entryx_refsource_BID
	https://bugzilla.redhat.com/show_bug.cgi?id=862900	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2013-0882.html	vendor-advisoryx_refsource_REDHAT
	http://secunia.com/advisories/51160	third-party-advisoryx_refsource_SECUNIA
	http://git.kernel.org/?p=linux/kernel/git/torvald…	x_refsource_CONFIRM
	http://article.gmane.org/gmane.comp.emulators.kvm…	x_refsource_MISC
	https://www.suse.com/support/update/announcement/…	vendor-advisoryx_refsource_SUSE
	http://www.openwall.com/lists/oss-security/2012/1…	mailing-listx_refsource_MLIST
	http://www.kernel.org/pub/linux/kernel/v3.x/Chang…	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

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JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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