Debian Security Bug TrackerDEBIANCVE:CVE-2012-3495CVE-2012-3495
6.1 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
0.001 Low
EPSS
Percentile
27.0%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | xen | < 4.1.3-2 | xen_4.1.3-2_all.deb |
| Debian | 11 | all | xen | < 4.1.3-2 | xen_4.1.3-2_all.deb |
| Debian | 10 | all | xen | < 4.1.3-2 | xen_4.1.3-2_all.deb |
| Debian | 999 | all | xen | < 4.1.3-2 | xen_4.1.3-2_all.deb |
| Debian | 13 | all | xen | < 4.1.3-2 | xen_4.1.3-2_all.deb |
Related
6.1 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
0.001 Low
EPSS
Percentile
27.0%