imPC@ndo IT

Tracker / CVE-2015-0239

CVE-2015-0239

Medium 4.4

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.

Affected products and versions

canonical ubuntu_linux
debian debian_linux
linux linux_kernel · … → 3.18.5
oracle linux
redhat enterprise_linux_desktop
redhat enterprise_linux_server
redhat enterprise_linux_workstation

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References