What is CVE-2017-10917?

CVE-2017-10917 is a critical-severity vulnerability in Xen, classified under NULL Pointer Dereference. CVSS score: 9.1/10. Published 2017-07-05.

How severe is CVE-2017-10917?

Critical severity. CVSS v3 base score is 9.1 out of 10.

NULL pointer dereference in Xen

CVE-2017-10917

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.

EPSS: 0.026 (83.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Xen
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
cve@mitre.org (x_refsource_CONFIRM, Mailing List, Third Party Advisory, Mitigation)
cve@mitre.org (vdb-entry, x_refsource_BID)
cve@mitre.org (vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2017-10917?: CVE-2017-10917 is a critical-severity vulnerability in Xen, classified under NULL Pointer Dereference. CVSS score: 9.1/10. Published 2017-07-05.
How severe is CVE-2017-10917?: Critical severity. CVSS v3 base score is 9.1 out of 10.