vulnerability
FreeBSD: VID-3ae078ca-c7eb-11e6-ae1b-002590263bf5 (CVE-2016-10024): xen-kernel -- x86 PV guests may be able to mask interrupts
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:N/I:N/A:C) | Dec 22, 2016 | Dec 22, 2016 | Dec 10, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
Dec 22, 2016
Added
Dec 22, 2016
Modified
Dec 10, 2025
Description
The Xen Project reports: Certain PV guest kernel operations (page table writes in particular) need emulation, and use Xen's general x86 instruction emulator. This allows a malicious guest kernel which asynchronously modifies its instruction stream to effect the clearing of EFLAGS.IF from the state used to return to guest context. A malicious guest kernel administrator can cause a host hang or crash, resulting in a Denial of Service.
Solution
freebsd-upgrade-package-xen-kernel
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