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CVE-2016-2392

Published: 17 February 2016

The is_rndis function in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 does not properly validate USB configuration descriptor objects, which allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving a remote NDIS control message packet.

Notes

AuthorNote
tyhicks
privileged users inside the guest can trigger a DoS but they
could also simply shut down the guest

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
precise Does not exist

trusty
Released (2.0.0+dfsg-2ubuntu1.24)
upstream Needed

vivid Ignored
(end of life, was needed)
wily
Released (1:2.3+dfsg-5ubuntu9.4)
xenial
Released (1:2.5+dfsg-5ubuntu10.1)
Patches:
upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=80eecda8e5d09c442c24307f340840a5b70ea3b9
qemu-kvm
Launchpad, Ubuntu, Debian
precise
Released (1.0+noroms-0ubuntu14.28)
trusty Does not exist

upstream Needed

vivid Does not exist

wily Does not exist

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H