CVE-2012-3516
MEDIUM · CVSS 6.9EPSS 0.4%EU EUVD
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.
Key facts
- CVSS score
- 6.9 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:L/AC:M/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-264
- EPSS score
- 0.4% (29th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-3471)
- Published
- November 23, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-3471 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- citrix / xenserver
- xen / xen
References
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html
- http://secunia.com/advisories/50472(Vendor Advisory)
- http://secunia.com/advisories/50530(Vendor Advisory)
- http://support.citrix.com/article/CTX134708(Patch, Vendor Advisory)
- http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking
- http://www.openwall.com/lists/oss-security/2012/09/05/11
- http://www.securityfocus.com/bid/55411
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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