The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.
CVSS Details
- CVSS 3.1 Base Score: 8.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xenUpgrade linux-vanilla.Upgrade linux-grsecUpgrade qemu | Aug 30, 2017 | Dec 17, 2015 |
| Debian | — | Upgrade xen | Mar 22, 2016 | Jan 22, 2016 |
| Freebsd | — | Upgrade xen-kernel | Dec 10, 2025 | Feb 28, 2016 |
| Suse | — | Upgrade xen-tools-domuUpgrade xen-tools-xendomains-wait-diskUpgrade xen-develUpgrade xen-doc-htmlUpgrade xen-kmp-traceUpgrade xen-kmp-paeUpgrade xen-doc-pdfUpgrade xen-libsUpgrade xen-kmp-defaultUpgrade xenUpgrade xen-libs-32bitUpgrade xen-tools | Mar 28, 2016 | Jan 22, 2016 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Jan 22, 2016 |
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