CVE-2012-3516

Citrix XenServer < 6.0.2 and Xen 4.2 - Denial of Service and Privilege Escalation via GNTTABOP_swap_grant_ref

Title source: llm

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.

References (7)

Core 7

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/55411

Vendor Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/50530

Mailing List mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2012/09/05/11

Vendor Advisory third-party-advisory x_refsource_secunia

http://secunia.com/advisories/50472

Patch, Vendor Advisory x_refsource_confirm

http://support.citrix.com/article/CTX134708

Third Party Advisory x_refsource_confirm

http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html

Scores

EPSS 0.0008

EPSS Percentile 23.7%

Details

CWE

CWE-264

Status published

Products (2)

citrix/xenserver < 6.0.2

xen/xen 4.2.0

Published Nov 23, 2012

Tracked Since Feb 18, 2026