An issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Aug 22, 2024 | Aug 17, 2018 |
| Debian | — | Upgrade xen | Feb 19, 2019 | Aug 17, 2018 |
| Gentoo Linux | — | Upgrade app-emulation/xen.Upgrade app-emulation/xen-tools. | Oct 31, 2018 | Aug 17, 2018 |
| Suse | — | Upgrade xenUpgrade xen-doc-htmlUpgrade xen-tools-domUUpgrade xen-toolsUpgrade xen-libs-32bitUpgrade xen-tools-xendomains-wait-diskUpgrade xen-libsUpgrade xen-devel | Oct 28, 2018 | Aug 17, 2018 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Aug 17, 2018 |
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