VDB
CVE-2016-4480
CVE-2016-4480
PUBLISHED
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 0.39% · 60.6th percentile
Risk Scores
EPSS Score
0.39%
60.6th 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 |
Exploit Intelligence
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html (circl)
- 90710 (circl)
- 1035901 (circl)
- DSA-3633 (circl)
- http://xenbits.xen.org/xsa/advisory-176.html (circl)
Timeline
- May 18, 2016 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Jul 12, 2022 EPSS Score
- Sep 3, 2022 EPSS Score
- Oct 26, 2022 EPSS Score
- Dec 18, 2022 EPSS Score
- Feb 8, 2023 EPSS Score
- Apr 2, 2023 EPSS Score
- May 25, 2023 EPSS Score
- Jul 16, 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