CVE-2019-12155
Published: 24 May 2019
interface_release_resource in hw/display/qxl.c in QEMU 3.1.x through 4.0.0 has a NULL pointer dereference.
From the Ubuntu Security Team
Sergej Schumilo, Cornelius Aschermann and Simon Wörner discovered that the qxl paravirtual graphics driver implementation in QEMU contained a null pointer dereference. A local attacker in a guest could use this to cause a denial of service.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
qemu Launchpad, Ubuntu, Debian |
bionic |
Released
(1:2.11+dfsg-1ubuntu7.20)
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Released
(1:3.1+dfsg-2ubuntu3.6)
|
|
| eoan |
Released
(1:4.0+dfsg-0ubuntu9.1)
|
|
| focal |
Released
(1:4.2-1ubuntu1)
|
|
| groovy |
Released
(1:4.2-1ubuntu1)
|
|
| hirsute |
Released
(1:4.2-1ubuntu1)
|
|
| trusty |
Released
(2.0.0+dfsg-2ubuntu1.47)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(1:4.2-1)
|
|
| xenial |
Released
(1:2.5+dfsg-5ubuntu10.42)
|
|
|
Patches: upstream: https://git.qemu.org/?p=qemu.git;a=commit;h=d52680fc932efb8a2f334cc6993e705ed1e31e99 |
||
|
qemu-kvm Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |