Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | <= 4.8.1 |
Related Weaknesses (CWE)
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 ListMitigationThird 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 ListMitigationThird Party Advisory
FAQ
What is CVE-2017-10917?
CVE-2017-10917 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 ob...
How severe is CVE-2017-10917?
CVE-2017-10917 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-10917?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.