certfr_avis - certa-2012-avi-428

CERTA-2012-AVI-428

Vulnerability from certfr_avis

Une vulnérabilité a été corrigée dans Xen. Une machine invitée peut modifier son espace d'adressage physique et ainsi ralentir la résolution des pages partagées. Un utilisateur malintentionné peut ainsi rendre inutilisable la machine hôte en provoquant un « kernel panic ».

Solution

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

None

Impacted products

Vendor	Product	Description
XEN	Xen	Xen 4.1 ;
XEN	Xen	Xen 3.4 et antérieures.
XEN	Xen	Xen 4.0 ;

References

Title

Publication Time

CVE-2012-3433 (GCVE-0-2012-3433)

Vulnerability from cvelistv5

Published

2012-11-24 20:00

Modified

2024-08-06 20:05

Severity ?

CWE

Summary

Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown.

References

URL

Tags

	http://www.debian.org/security/2012/dsa-2531	vendor-advisory, x_refsource_DEBIAN
	http://secunia.com/advisories/55082	third-party-advisory, x_refsource_SECUNIA
	http://www.openwall.com/lists/oss-security/2012/08/09/3	mailing-list, x_refsource_MLIST
	http://security.gentoo.org/glsa/glsa-201309-24.xml	vendor-advisory, x_refsource_GENTOO
	http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html	vendor-advisory, x_refsource_SUSE
	http://www.securityfocus.com/bid/54942	vdb-entry, x_refsource_BID
	http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html	vendor-advisory, x_refsource_SUSE
	http://lists.xen.org/archives/html/xen-devel/2012-08/msg00855.html	mailing-list, x_refsource_MLIST
	http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html	vendor-advisory, x_refsource_SUSE

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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