The set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
CVSS Details
- CVSS 3.1 Base Score: 3.3
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Aug 30, 2017 | Nov 23, 2012 |
| Debian | — | Upgrade xen | Jul 30, 2024 | Nov 23, 2012 |
| Gentoo Linux | — | Upgrade app-emulation/xen-pvgrub.Upgrade app-emulation/xen.Upgrade app-emulation/xen-tools.Upgrade app-emulation/pvgrub. | Oct 30, 2017 | Nov 23, 2012 |
| Suse | — | Upgrade xen-kmp-defaultUpgrade xenUpgrade xen-kmp-traceUpgrade xen-doc-htmlUpgrade xen-libsUpgrade vm-installUpgrade xen-tools-domUUpgrade xen-doc-pdfUpgrade xen-libs-32bitUpgrade xen-develUpgrade xen-kmp-paeUpgrade xen-tools | Feb 17, 2015 | Jun 28, 2013 |
| Ubuntu | — | Upgrade xen | Nov 19, 2024 | Nov 23, 2012 |
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