CVEvulnerability
CVE-2012-3516
6.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2012-11-23
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-264
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.
Affected configurations
• citrix xenserver (<= 6.0.2)
• xen xen 4.2.0
Related
Weakness · not in database (1)
References
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html lists.opensuse.org
- 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 wiki.xen.org
- http://www.openwall.com/lists/oss-security/2012/09/05/11 www.openwall.com
- http://www.securityfocus.com/bid/55411 www.securityfocus.com
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html lists.opensuse.org
- 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 wiki.xen.org
- http://www.openwall.com/lists/oss-security/2012/09/05/11 www.openwall.com
- http://www.securityfocus.com/bid/55411 www.securityfocus.com