CVE-2018-15469
Published: 17 August 2018
An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).
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~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Not vulnerable
(4.11.1~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| kinetic |
Not vulnerable
(4.11.1~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| lunar |
Not vulnerable
(4.11.1~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| mantic |
Not vulnerable
(4.11.1~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| noble |
Not vulnerable
(4.11.1~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| trusty |
Does not exist
(trusty was needs-triage)
|
|
| upstream |
Released
(4.11.1~pre.20180911.5acdd26fdc+dfsg-2)
|
|
| xenial |
Needed
|
|
| Binaries built from this source package are in Universe and so are supported by the community. | ||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |