CVEvulnerability
CVE-2016-4480
8.4 HIGH
Official page ↗
- Status
- Modified
- Published
- 2016-05-18
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 8.4 HIGH — CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-264
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.
Affected configurations
• oracle vm server 3.2
• oracle vm server 3.3
• oracle vm server 3.4
• xen xen (<= 4.6.1)
Related
Weakness · not in database (1)
References
- http://www.debian.org/security/2016/dsa-3633 www.debian.org
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Vendor Advisory
- http://www.securityfocus.com/bid/90710 www.securityfocus.com
- http://www.securitytracker.com/id/1035901 www.securitytracker.com
- http://xenbits.xen.org/xsa/advisory-176.html Vendor Advisory
- http://www.debian.org/security/2016/dsa-3633 www.debian.org
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Vendor Advisory
- http://www.securityfocus.com/bid/90710 www.securityfocus.com
- http://www.securitytracker.com/id/1035901 www.securitytracker.com
- http://xenbits.xen.org/xsa/advisory-176.html Vendor Advisory