CVE-2017-10917
critical
CVSS v3
9.1
CVSS v4 NEW
—
VIR risk
9.1
Description
Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.
Predictions
Exploit likelihood
94%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 4.8.1-1+deb9u3 |
| debian | bullseye | fixed | 4.8.1-1+deb9u3 |
| debian | forky | fixed | 4.8.1-1+deb9u3 |
| debian | sid | fixed | 4.8.1-1+deb9u3 |
| debian | trixie | fixed | 4.8.1-1+deb9u3 |
References
- http://www.debian.org/security/2017/dsa-3969
- http://www.securityfocus.com/bid/99157
- http://www.securitytracker.com/id/1038731
- https://security.gentoo.org/glsa/201708-03
- https://xenbits.xen.org/xsa/advisory-221.html
- https://www.suse.com/security/cve/CVE-2017-10917.html
- https://security-tracker.debian.org/tracker/CVE-2017-10917
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.