CWE Code: 755
Vulnerability Type: privilege_escalation
CVSS Score: 4.6
CWE Name:  Improper Handling of Exceptional Conditions
Summary: a flaw was found in the linux kernel before version 4.12 in the way the kvm module processed the trap flag(tf) bit in eflags during emulation of the syscall instruction, which leads to a debug exception(#db) being raised in the guest stack. a user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. linux guests are not affected by this.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): PARTIAL/PARTIAL/PARTIAL
Published Date: 2018-07-30
Last Modified Date: 2019-10-09