The x86 emulator in Xen does not properly treat x86 NULL segments as unusable when accessing memory, which might allow local HVM guest users to gain privileges via vectors involving "unexpected" base/limit values.
CVSS Details
- CVSS 3.0 Base Score: 7.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-xen | Sep 20, 2017 | Jan 23, 2017 | |
| Debian | debian-upgrade-xen | Dec 9, 2016 | Dec 7, 2016 | |
| Freebsd | freebsd-upgrade-package-xen-kernel | Dec 4, 2016 | Dec 4, 2016 | |
| Gentoo Linux | gentoo-linux-upgrade-app-emulation-xengentoo-linux-upgrade-app-emulation-xen-pvgrubgentoo-linux-upgrade-app-emulation-xen-tools | Oct 30, 2017 | Jan 23, 2017 | |
| Redhat_linux | no-fix-redhat-rpm-package | Jul 9, 2025 | Nov 22, 2016 | |
| Suse | — | suse-upgrade-xensuse-upgrade-xen-develsuse-upgrade-xen-doc-htmlsuse-upgrade-xen-doc-pdfsuse-upgrade-xen-kmp-defaultsuse-upgrade-xen-kmp-paesuse-upgrade-xen-kmp-tracesuse-upgrade-xen-libssuse-upgrade-xen-libs-32bitsuse-upgrade-xen-toolssuse-upgrade-xen-tools-domususe-upgrade-xen-tools-xendomains-wait-disk | Dec 9, 2016 | Dec 7, 2016 |
| Ubuntu | ubuntu-upgrade-xen | Nov 19, 2024 | Jan 23, 2017 |
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