The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x up to and including 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
xen xen 3.3.1 |
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xen xen 3.3.2 |
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xen xen 4.1.6.1 |
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xen xen 4.2.0 |
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xen xen 4.2.1 |
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xen xen 4.4.1 |
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xen xen 3.3.0 |
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xen xen 4.1.4 |
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xen xen 4.1.5 |
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xen xen 4.4.0 |
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xen xen 4.1.2 |
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xen xen 4.1.3 |
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xen xen 4.3.0 |
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xen xen 4.3.1 |
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xen xen 4.1.0 |
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xen xen 4.1.1 |
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xen xen 4.2.2 |
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xen xen 4.2.3 |
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