Описание
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
Ссылки
- Mailing ListThird Party Advisory
- Mailing ListThird Party Advisory
- Third Party Advisory
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- Third Party AdvisoryVDB Entry
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- PatchVendor Advisory
- PatchVendor Advisory
- Mailing ListThird Party Advisory
- Mailing ListThird Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party Advisory
- Third Party AdvisoryVDB Entry
- Third Party AdvisoryVDB Entry
- PatchVendor Advisory
- PatchVendor Advisory
Уязвимые конфигурации
Одно из
Одно из
Одно из
EPSS
3.8 Low
CVSS3
1.7 Low
CVSS2
Дефекты
Связанные уязвимости
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not proper ...
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
Уязвимость гипервизора Xen, позволяющая нарушителю получить доступ к защищаемой информации о содержимом регистра
EPSS
3.8 Low
CVSS3
1.7 Low
CVSS2