CVE-2018-18883
Published: 1 November 2018
An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.
Notes
Author | Note |
---|---|
mdeslaur | hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary |
Priority
Status
Package | Release | Status |
---|---|---|
xen Launchpad, Ubuntu, Debian |
bionic |
Needed
|
cosmic |
Ignored
(end of life)
|
|
disco |
Ignored
(end of life)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Not vulnerable
(4.11.1-1)
|
|
trusty |
Does not exist
(trusty was needs-triage)
|
|
upstream |
Released
(4.11.1-1)
|
|
xenial |
Not vulnerable
(code not present)
|
|
hirsute |
Ignored
(end of life)
|
|
jammy |
Not vulnerable
(4.11.1-1)
|
|
kinetic |
Not vulnerable
(4.11.1-1)
|
|
groovy |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
lunar |
Not vulnerable
(4.11.1-1)
|
|
mantic |
Not vulnerable
(4.11.1-1)
|
|
Binaries built from this source package are in Universe and so are supported by the community. |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Changed |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |