The do_hvm_op function in xen/arch/x86/hvm/hvm.c in Xen 4.2.x on the x86_32 platform does not prevent HVM_PARAM_NESTEDHVM (aka nested virtualization) operations, which allows guest OS users to cause a denial of service (long-duration page mappings and host OS crash) by leveraging administrative access to an HVM guest in a domain with a large number of VCPUs.
CVSS Details
- CVSS 3.1 Base Score: 6.5
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Gentoo Linux | — | Upgrade app-emulation/xen-tools.Upgrade app-emulation/xen.Upgrade app-emulation/xen-pvgrub. | Oct 30, 2017 | Mar 7, 2013 |
| Suse | — | Upgrade xen-toolsUpgrade xen-doc-pdfUpgrade xen-kmp-desktopUpgrade xen-libsUpgrade xen-kmp-paeUpgrade xen-libs-32bitUpgrade xen-kmp-defaultUpgrade xenUpgrade xen-tools-domUUpgrade xen-develUpgrade xen-doc-html | Dec 12, 2013 | Mar 7, 2013 |
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