The em_sysenter function in arch/x86/kvm/emulate.c in the...
Moderate severity
Unreviewed
Published
May 13, 2022
to the GitHub Advisory Database
•
Updated Feb 10, 2023
Description
Published by the National Vulnerability Database
Mar 2, 2015
Published to the GitHub Advisory Database
May 13, 2022
Last updated
Feb 10, 2023
The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction.
References