CVE-2018-20815
Published: 31 December 2018
In QEMU 3.1.0, load_device_tree in device_tree.c calls the deprecated load_image function, which has a buffer overflow risk.
From the Ubuntu Security Team
Kurtis Miller discovered that a buffer overflow existed in QEMU when loading a device tree blob. A local attacker could use this to execute arbitrary code.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
bionic |
Released
(1:2.11+dfsg-1ubuntu7.13)
|
| cosmic |
Released
(1:2.12+dfsg-3ubuntu8.7)
|
|
| groovy |
Released
(1:3.1+dfsg-2ubuntu4)
|
|
| hirsute |
Released
(1:3.1+dfsg-2ubuntu4)
|
|
| disco |
Released
(1:3.1+dfsg-2ubuntu3.1)
|
|
| eoan |
Released
(1:3.1+dfsg-2ubuntu4)
|
|
| focal |
Released
(1:3.1+dfsg-2ubuntu4)
|
|
| trusty |
Released
(2.0.0+dfsg-2ubuntu1.46)
|
|
| upstream |
Released
(91:3.1+dfsg-7)
|
|
| xenial |
Released
(1:2.5+dfsg-5ubuntu10.38)
|
|
|
Patches: upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=da885fe1ee8b4589047484bd7fa05a4905b52b17 |
||
|
qemu-kvm Launchpad, Ubuntu, Debian |
groovy |
Does not exist
|
| hirsute |
Does not exist
|
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |