CVE-2018-15469
6.5
MEDIUM
CVSS 3.1
EPSS 0.18%
Description
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).
How to fix CVE-2018-15469
To remediate CVE-2018-15469, upgrade the affected package to a fixed version below.
- —upgrade to 4.11.1-r0 or later
- —upgrade to 4.11.1~pre.20180911.5acdd26fdc+dfsg-2 or later
Is CVE-2018-15469 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.11.1-r0
- from 0, < 4.11.1~pre.20180911.5acdd26fdc+dfsg-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |