CVEvulnerability

CVE-2012-3495

6.1 MEDIUM Published 2012-11-23 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2012-11-23
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
6.1 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:C
Weaknesses
CWE-20

Description

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.

Affected configurations

• citrix xenserver (<= 6.0.2) • citrix xenserver 5.0 • citrix xenserver 5.5 • citrix xenserver 5.6 • citrix xenserver 6.0 • xen xen 4.1.0 • xen xen 4.1.1 • xen xen 4.1.2 • xen xen 4.1.3

Related

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References