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CVE-2012-3516 Details

Description

The 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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html	CVE
http://secunia.com/advisories/50472	CVE	Vendor Advisory
http://secunia.com/advisories/50530	CVE	Vendor Advisory
http://support.citrix.com/article/CTX134708	CVE	PatchVendor Advisory
http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking	CVE
http://www.openwall.com/lists/oss-security/2012/09/05/11	CVE
http://www.securityfocus.com/bid/55411	CVE
http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html	[email protected]
http://secunia.com/advisories/50472	[email protected]	Vendor Advisory
http://secunia.com/advisories/50530	[email protected]	Vendor Advisory
http://support.citrix.com/article/CTX134708	[email protected]	PatchVendor Advisory
http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking	[email protected]
http://www.openwall.com/lists/oss-security/2012/09/05/11	[email protected]
http://www.securityfocus.com/bid/55411	[email protected]

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-264	Permissions, Privileges, and Access Controls	[email protected]

Affected Products

Product	Versions
citrix xenserver	<= 6.0.2
CPE cpe:2.3:a:citrix:xenserver:::::::: Remediation No remediation found in references.
xen xen	4.2.0
CPE cpe:2.3:o:xen:xen:4.2.0:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 26, 2012	Initial Analysis	[email protected]