Vulnerability in Citrix Xenserver

CVE-2012-3494

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.

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References