CVE-2016-4439
Published: 20 May 2016
The esp_reg_write function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check command buffer length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or potentially execute arbitrary code on the QEMU host via unspecified vectors.
Notes
Author | Note |
---|---|
mdeslaur | qemu-kvm in precise doesn't build esp.c on Ubuntu |
Priority
Status
Package | Release | Status |
---|---|---|
qemu-kvm Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
wily |
Does not exist
|
|
xenial |
Does not exist
|
|
qemu Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
trusty |
Released
(2.0.0+dfsg-2ubuntu1.26)
|
|
upstream |
Needs triage
|
|
wily |
Ignored
(end of life)
|
|
xenial |
Released
(1:2.5+dfsg-5ubuntu10.3)
|
|
Patches: other: https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html upstream: http://git.qemu.org/?p=qemu.git;a=commit;h=c98c6c105f66f05aa0b7c1d2a4a3f716450907ef |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.7 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | High |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |