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prionPRIOn knowledge basePRION:CVE-2016-3157
HistoryApr 12, 2016 - 4:59 p.m.

Design/Logic Flaw

2016-04-1216:59:00
PRIOn knowledge base
www.prio-n.com
5

6.8 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

28.2%

The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.

CPENameOperatorVersion
ubuntu_linuxeq12.04
xeneq4.0.0

6.8 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

28.2%