CVE-2015-8550
8.2
HIGH
CVSS 3.1
EPSS 16.0%
Description
Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.
How to fix CVE-2015-8550
To remediate CVE-2015-8550, upgrade the affected package to a fixed version below.
- Debian/linux—upgrade to 4.3.3-3 or later
- Debian/qemu—upgrade to 1:2.5+dfsg-2 or later
- —upgrade to 4.8.0~rc3-1 or later
Is CVE-2015-8550 being exploited?
Moderate — EPSS is 16.0%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (3)
- from 0, < 4.3.3-3
- from 0, < 1:2.5+dfsg-2
- from 0, < 4.8.0~rc3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.2 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |