CVE-2016-2391
Published: 17 February 2016
The ohci_bus_start function in the USB OHCI emulation support (hw/usb/hcd-ohci.c) in QEMU allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors related to multiple eof_timers.
Notes
Author | Note |
---|---|
tyhicks | privileged users inside the guest can trigger a DoS but they could also simply shut down the guest |
mdeslaur | in hw/usb-ohci.c in precise |
Priority
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=fa1298c2d623522eda7b4f1f721fcb935abb7360 |
||
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 | 5.0 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |