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The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Sep 20, 2017 | Oct 30, 2015 |
| Debian | — | Upgrade xen | Nov 9, 2015 | Oct 30, 2015 |
| Freebsd | — | Upgrade xen-kernel | Dec 10, 2025 | Nov 11, 2015 |
| Gentoo Linux | — | Upgrade app-emulation/pvgrub.Upgrade app-emulation/xen.Upgrade app-emulation/xen-pvgrub.Upgrade app-emulation/xen-tools. | Oct 30, 2017 | Oct 30, 2015 |
| Suse | — | Upgrade xen-tools-xendomains-wait-diskUpgrade xenUpgrade xen-develUpgrade xen-toolsUpgrade xen-doc-htmlUpgrade xen-libs-32bitUpgrade xen-doc-pdfUpgrade xen-kmp-paeUpgrade xen-kmp-traceUpgrade xen-tools-domUUpgrade xen-libsUpgrade xen-kmp-default | Dec 18, 2015 | Oct 30, 2015 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Oct 30, 2015 |
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