The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application, as demonstrated by an NASM file.
Platform | Package | Release Date | Advisory |
---|---|---|---|
Amazon Linux 1 | kernel | 2012-03-16 10:53 | ALAS-2012-55 |
Score Type | Score | Vector | |
---|---|---|---|
Amazon Linux | CVSSv2 | 4.0 | AV:L/AC:H/Au:N/C:N/I:N/A:C |
NVD | CVSSv2 | 4.7 | AV:L/AC:M/Au:N/C:N/I:N/A:C |