CVE-2017-14319
8.8
HIGH
CVSS 3.1
EPSS 0.04%
Description
A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.
How to fix CVE-2017-14319
To remediate CVE-2017-14319, upgrade the affected package to a fixed version below.
- —upgrade to 4.9.0-r4 or later
- —upgrade to 4.8.2+xsa245-0+deb9u1 or later
Is CVE-2017-14319 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.9.0-r4
- from 0, < 4.8.2+xsa245-0+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |