The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
CVSS Details
- CVSS 3.1 Base Score: 5.5
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade xen | Jul 30, 2024 | Nov 19, 2014 |
| Gentoo Linux | — | Upgrade app-emulation/xen. | Oct 30, 2017 | Nov 19, 2014 |
| Suse | — | Upgrade xen-tools-domUUpgrade xenUpgrade xen-kmp-traceUpgrade xen-doc-htmlUpgrade xen-kmp-defaultUpgrade xen-kmp-paeUpgrade xen-doc-pdfUpgrade xen-libs-32bitUpgrade xen-develUpgrade xen-libsUpgrade xen-tools | Dec 18, 2015 | Nov 19, 2014 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Nov 19, 2014 |
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