| Vulnerability Name: | CVE-2012-3516 (CCN-78271) | ||||||||||||
| Assigned: | 2012-09-05 | ||||||||||||
| Published: | 2012-09-05 | ||||||||||||
| Updated: | 2013-02-01 | ||||||||||||
| Summary: | 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. | ||||||||||||
| CVSS v3 Severity: | 4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
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| CVSS v2 Severity: | 6.9 Medium (CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C) 5.1 Medium (Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C/E:U/RL:OF/RC:C)
1.6 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
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| Vulnerability Type: | CWE-264 | ||||||||||||
| Vulnerability Consequences: | Denial of Service | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2012-3516 Source: SUSE Type: UNKNOWN SUSE-SU-2012:1133 Source: CCN Type: Xen Security Advisory 18 (CVE-2012-3516) grant table entry swaps have inadequate bounds checking Source: CCN Type: SA50472 Xen Multiple Denial of Service and Privilege Escalation Vulnerabilities Source: SECUNIA Type: Vendor Advisory 50472 Source: CCN Type: SA50530 Citrix XenServer Denial of Service and Privilege Escalation Vulnerabilities Source: SECUNIA Type: Vendor Advisory 50530 Source: CCN Type: CTX134708 Citrix XenServer Multiple Security Updates Source: CONFIRM Type: Patch, Vendor Advisory http://support.citrix.com/article/CTX134708 Source: CCN Type: CTX134876 Citrix NetScaler SDX Multiple Security Updates Source: CONFIRM Type: UNKNOWN http://wiki.xen.org/wiki/Security_Announcements#XSA-18_grant_table_entry_swaps_have_inadequate_bounds_checking Source: MLIST Type: UNKNOWN [oss-security] 20120905 Xen Security Advisory 18 (CVE-2012-3516) - grant table entry swaps have inadequate bounds checking Source: CCN Type: OSVDB ID: 85201 Xen Grand Table Hypercall GNTTABOP_swap_grant_ref Sub-operation Input Grant Reference Verification Local Privilege Escalation Source: BID Type: UNKNOWN 55411 Source: CCN Type: BID-55411 Xen 'GNTTABOP_swap_grant_ref' CVE-2012-3516 Denial of Service Vulnerability Source: CCN Type: Red Hat Bugzilla Bug 851202 CVE-2012-3516 kernel: xen: grant table entry swaps have inadequate bounds checking Source: XF Type: UNKNOWN xen-gnttabopswapgrantref-dos(78271) | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||
| Oval Definitions | |||||||||||||
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