Privilege Escalation Vulnerability in Linux Kernel on 32-bit Xen Paravirt_ops Platforms

CVE-2013-0228 · MEDIUM Severity

AV:L/AC:H/AU:N/C:C/I:C/A:C

The xen_iret function in arch/x86/xen/xen-asm_32.S in the Linux kernel before 3.7.9 on 32-bit Xen paravirt_ops platforms does not properly handle an invalid value in the DS segment register, which allows guest OS users to gain guest OS privileges via a crafted application.

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