vulnerability
Ubuntu: (CVE-2016-4480): xen vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | May 18, 2016 | Nov 19, 2024 | Aug 19, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
May 18, 2016
Added
Nov 19, 2024
Modified
Aug 19, 2025
Description
The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.
Solution
ubuntu-upgrade-xen
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