| CVE-2012-3495 | Date: (C)2012-11-25 (M)2023-12-22 |
The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V2 Severity: |
| CVSS Score : 6.1 |
| Exploit Score: 3.9 |
| Impact Score: 8.5 |
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| CVSS V2 Metrics: |
| Access Vector: LOCAL |
| Access Complexity: LOW |
| Authentication: NONE |
| Confidentiality: PARTIAL |
| Integrity: PARTIAL |
| Availability: COMPLETE |
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