CVE-2020-29485
5.5
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable.
How to fix CVE-2020-29485
To remediate CVE-2020-29485, upgrade the affected package to a fixed version below.
- —upgrade to 4.13.2-r3 or later
- —upgrade to 4.14.0+88-g1d1d1f5391-1 or later
Is CVE-2020-29485 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.13.2-r3
- from 0, < 4.14.0+88-g1d1d1f5391-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |