CVE-2016-7092
What it is
The get_page_from_l3e function in arch/x86/mm.c in Xen allows local 32-bit PV guest OS administrators to gain host OS privileges via vectors related to L3 recursive pagetables.
At a glance
- Exploitability
- Can be exploited locally on the machine with an admin-level account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 8.2 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-264
- Record status
- Modified
Affected
- Xen
Attack profile CVSS 3.0 · 8.2
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2016-7092.md and follow it. Check whether this project is affected by CVE-2016-7092. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://xenbits.xen.org/xsa/advisory-185.html
- http://xenbits.xen.org/xsa/xsa185.patch
- http://xenbits.xen.org/xsa/advisory-185.html
- http://xenbits.xen.org/xsa/xsa185.patch
References
- http://support.citrix.com/article/CTX216071
- http://www.debian.org/security/2016/dsa-3663
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/92862
- http://www.securitytracker.com/id/1036751
- http://xenbits.xen.org/xsa/advisory-185.html
- http://xenbits.xen.org/xsa/xsa185.patch
- https://security.gentoo.org/glsa/201611-09
- http://support.citrix.com/article/CTX216071
- http://www.debian.org/security/2016/dsa-3663
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/92862
- http://www.securitytracker.com/id/1036751
- http://xenbits.xen.org/xsa/advisory-185.html
- http://xenbits.xen.org/xsa/xsa185.patch
- https://security.gentoo.org/glsa/201611-09