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 | — | Upgrade xen | Sep 20, 2017 | Jan 23, 2017 |
| Debian | — | Upgrade xen | Dec 9, 2016 | Dec 7, 2016 |
| Freebsd | — | Upgrade xen-kernel | Dec 4, 2016 | Dec 4, 2016 |
| Gentoo Linux | — | Upgrade app-emulation/xen-pvgrub.Upgrade app-emulation/xen-tools.Upgrade app-emulation/xen. | Oct 30, 2017 | Jan 23, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Nov 22, 2016 |
| Suse | — | Upgrade xen-kmp-traceUpgrade xen-develUpgrade xen-tools-domuUpgrade xen-tools-xendomains-wait-diskUpgrade xen-toolsUpgrade xen-doc-htmlUpgrade xen-doc-pdfUpgrade xen-kmp-paeUpgrade xen-libs-32bitUpgrade xen-libsUpgrade xenUpgrade xen-kmp-default | Dec 9, 2016 | Dec 7, 2016 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Jan 23, 2017 |
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