CVE-2020-29568
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-29568
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-29568.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.9.15-1 |
| debian | bullseye | fixed | 5.9.15-1 |
| debian | forky | fixed | 5.9.15-1 |
| debian | sid | fixed | 5.9.15-1 |
| debian | trixie | fixed | 5.9.15-1 |
References
Verify integrity in audit chain (admin only). AS-IS.