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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Oct 27, 2017 | Jul 5, 2017 |
| Debian | — | Upgrade xen | Sep 13, 2017 | Jul 4, 2017 |
| Suse | — | Upgrade xen-tools-domUUpgrade xen-kmp-defaultUpgrade xen-libsUpgrade xen-libs-32bitUpgrade xen-toolsUpgrade xenUpgrade xen-doc-html | Jul 6, 2017 | Jul 4, 2017 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Jul 5, 2017 |
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