CVE-2020-29568
6.5
MEDIUM
CVSS 3.1
EPSS 0.23%
Description
An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
How to fix CVE-2020-29568
To remediate CVE-2020-29568, upgrade the affected package to a fixed version below.
- —upgrade to 5.10.4-r0 or later
- —upgrade to 0 or later
- —upgrade to 5.9.15-1 or later
Is CVE-2020-29568 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.10.4-r0
- from 0, < 0
- from 0, < 5.9.15-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |