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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.026 (84.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201708-03 (vendor-advisory)
- www.debian.org/security/2017/dsa-3969 (vendor-advisory)
- xenbits.xen.org/xsa/advisory-221.html (Mailing List, Third Party Advisory, Mitigation)
- www.securityfocus.com/bid/99157 (vdb-entry)
- www.securitytracker.com/id/1038731 (vdb-entry)
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.