CVE-2014-8480

2014-11-1000:00:00

ubuntu.com

4.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

0.001 Low

EPSS

Percentile

45.9%

JSON

The instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in
the Linux kernel before 3.18-rc2 lacks intended decoder-table flags for
certain RIP-relative instructions, which allows guest OS users to cause a
denial of service (NULL pointer dereference and host OS crash) via a
crafted application.

Bugs

<https://launchpad.net/bugs/1386398>

Notes

Author	Note
jdstrand	android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support
jj	3ea0a49a is an incomplete fix