PT-2013-2171 · Linux+3 · Linux Kernel+3
CVSS v2.0
6.2
Média
| Vetor | AV:L/AC:H/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 3.7.9
Description
The issue arises from the xen iret function in arch/x86/xen/xen-asm 32.S, which does not properly handle an invalid value in the DS segment register on 32-bit Xen paravirt ops platforms. This allows users in the guest operating system to gain privileges within the guest OS through a modified application.
Recommendations
For Linux kernel versions prior to 3.7.9, update to version 3.7.9 or later to resolve the issue.
As a temporary workaround, consider restricting access to the xen iret function in the affected Linux kernel versions until a patch is available.
Correção
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat