CVE-2017-10918

critical
Published 2017-07-05 · Modified 2026-05-13
CVSS v3
10.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v2
10.0
VIR risk
10.0

Description

Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host OS access, aka XSA-222.

Predictions

Exploit likelihood
98%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-10918

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-10918.html

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://xenbits.xen.org/xsa/advisory-222.html

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debianbookwormfixed4.8.1-1+deb9u3
debian debianbullseyefixed4.8.1-1+deb9u3
debian debianforkyfixed4.8.1-1+deb9u3
debian debiansidfixed4.8.1-1+deb9u3
debian debiantrixiefixed4.8.1-1+deb9u3

References

CWEs

CWE-20

Verify integrity in audit chain (admin only). AS-IS.