| Name | CVE-2017-10917 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3969-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xen (PTS) | buster, buster (security) | 4.11.4+107-gef32c7afa2-1 | fixed |
| bullseye | 4.14.6-1 | fixed |
| bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed |
| bookworm | 4.17.1+2-gb773c48e36-1 | fixed |
| sid, trixie | 4.17.2+76-ge1f9cb16e2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| xen | source | wheezy | (not affected) | | | |
| xen | source | jessie | 4.4.1-9+deb8u10 | | DSA-3969-1 | |
| xen | source | stretch | 4.8.1-1+deb9u3 | | DSA-3969-1 | |
| xen | source | (unstable) | 4.8.1-1+deb9u3 | | | |
Notes
[wheezy] - xen <not-affected> (Vulnerable code not present)
https://xenbits.xen.org/xsa/advisory-221.html