CVE-2017-14319 Other in n/a

High 8.8 Published 12 Sep 2017 Updated 5 Aug 2024

A flaw in Xen's grant unmapping logic allows attackers to bypass security checks, potentially leading to privilege escalation or unauthorized data access.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2017-14319?

CVE-2017-14319 is a high-severity vulnerability in Xen Xen, published on 12 Sep 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A grant unmapping issue was discovered in Xen through 4.9.x. When removing or replacing a grant mapping, the x86 PV specific path needs to make sure page table entries remain in sync with other accounting done. Although the identity of the page frame was validated correctly, neither the presence of the mapping nor page writability were taken into account.

Which versions are affected by CVE-2017-14319?

It affects 1 product.

Products include Xen Xen.

How do I fix CVE-2017-14319?

Apply the vendor's patch.

Is CVE-2017-14319 being exploited?

There is no known exploitation of CVE-2017-14319 in the wild and no public exploit code.

All Xen Xen vulnerabilities

Sources

Also known as ALPINE-CVE-2017-14319, DEBIAN-CVE-2017-14319, GHSA-j3wj-mf3m-r9xc, UBUNTU-CVE-2017-14319.