CWE Code: 264
Vulnerability Type: privilege_escalation
CVSS Score: 7.2
CWE Name:  Permissions Privileges and Access Controls
Summary: 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.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2016-04-12
Last Modified Date: 2016-12-03