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.Upgrade app-emulation/xen-tools.Upgrade app-emulation/xen-pvgrub. | Oct 30, 2017 | Jan 23, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Nov 22, 2016 |
| Suse | — | Upgrade xen-develUpgrade xen-tools-domuUpgrade xen-toolsUpgrade xen-kmp-traceUpgrade xen-tools-xendomains-wait-diskUpgrade xen-kmp-paeUpgrade xen-kmp-defaultUpgrade xen-libs-32bitUpgrade xen-doc-htmlUpgrade xen-libsUpgrade xenUpgrade xen-doc-pdf | Dec 9, 2016 | Dec 7, 2016 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Jan 23, 2017 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub