Unrated severityNVD Advisory· Published Nov 23, 2012· Updated Jun 16, 2026
CVE-2012-3516
CVE-2012-3516
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:citrix:xenserver:*:*:*:*:*:*:*:*range: <=6.0.2
- (no CPE)range: =6.0.2
Patches
Vulnerability mechanics
References
7- support.citrix.com/article/CTX134708nvdPatchVendor Advisory
- secunia.com/advisories/50472nvdVendor Advisory
- secunia.com/advisories/50530nvdVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.htmlnvd
- wiki.xen.org/wiki/Security_Announcementsnvd
- www.openwall.com/lists/oss-security/2012/09/05/11nvd
- www.securityfocus.com/bid/55411nvd
News mentions
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