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.
Metrics
CVSS 3.0 9.1/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
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.htmlMailing List, Mitigation, Third Party Advisory
- 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.htmlMailing List, Mitigation, Third Party Advisory
Timeline
- Published
- Jul 5, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified