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Xen in the Linux kernel when running a guest on a host without hardware assisted paging (HAP) allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.

🗓️ 25 Sep 2020 00:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Xen in Linux kernel on hosts without hardware paging lets guests crash the hypervisor via SAHF.

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25 Sep 2020 00:00Current
7High risk
Vulners AI Score7
CVSS 25.5
EPSS0.00137
2