CVE-2016-7422
Published: 16 September 2016
The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu-kvm Launchpad, Ubuntu, Debian |
upstream |
Not vulnerable
|
| precise |
Not vulnerable
(code not present)
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
|
qemu Launchpad, Ubuntu, Debian |
upstream |
Needed
|
| precise |
Does not exist
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
| yakkety |
Released
(1:2.6.1+dfsg-0ubuntu5.1)
|
|
|
Patches: upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=973e7170dddefb491a48df5cba33b2ae151013a0 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.0 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |