VDB
CVE-2016-4480
CVE-2016-4480
PUBLISHED
CVSS 8.399999618530273 HIGH
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.
EPSS 0.54% · 43.5th percentile
Risk Scores
CVSS 3.0
8.399999618530273
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.54%
43.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | xen | 4.4.1-0ubuntu0.14.04.5, 4.4.1-0ubuntu0.14.04.6, 4.4.2-0ubuntu0.14.04.1 |
| Ubuntu:16.04:LTS | xen | 0, 4.5.1-0ubuntu2, 4.6.0-1ubuntu1 |
Timeline
- May 18, 2016 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 21, 2022 EPSS Score
- Jul 15, 2022 EPSS Score
- Sep 6, 2022 EPSS Score
- Oct 29, 2022 EPSS Score
- Dec 21, 2022 EPSS Score
- Feb 12, 2023 EPSS Score
- Apr 7, 2023 EPSS Score
- May 30, 2023 EPSS Score
- Jul 22, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2016-4480 third-party-advisory
- http://xenbits.xen.org/xsa/advisory-176.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2016-4480 third-party-advisory