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MEDIUM

kernel: xen: userspace alterable %ds access in xen_iret()

Published Mar 1, 2013

Description

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.

Affected products

Remediation

Red Hat statement

This issue did affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 6. This issue did not affect Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

Metrics

Weaknesses (1)

References (14)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Mar 1, 2013
Updated Aug 6, 2024
Reserved Dec 6, 2012
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Important
Public date Feb 13, 2013