CVE-2012-3516

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Summary

CVECVE-2012-3516
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-11-23 20:55:03 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location.

Risk And Classification

Primary CVSS: v2.0 6.9 from [email protected]

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

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Citrix Xenserver All All All All
Operating System Xen Xen 4.2.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Security Advisory SA50530 - Citrix XenServer Denial of Service and Privilege Escalation Vulnerabilities - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
oss-security - Xen Security Advisory 18 (CVE-2012-3516) - grant table entry swaps have inadequate bounds checking af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
Xen 'GNTTABOP_swap_grant_ref' CVE-2012-3516 Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Advisory SA50472 - Xen Multiple Denial of Service and Privilege Escalation Vulnerabilities - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
Security Announcements - Xen af854a3a-2127-422b-91ae-364da2661108 wiki.xen.org
Citrix XenServer Multiple Security Updates af854a3a-2127-422b-91ae-364da2661108 support.citrix.com Patch, Vendor Advisory
[security-announce] SUSE-SU-2012:1133-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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