CVE-2019-17342 Race condition in n/a

High 7.0 Published Updated

A race condition in Xen allows guest OS users to cause denial of service or gain privileges via XENMEM_exchange.

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-2019-17342?

CVE-2019-17342 is a high-severity vulnerability in Debian Debian Linux, published on 8 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges by leveraging a race condition that arose when XENMEM_exchange was introduced.

Weakness: CWE-362

Which versions are affected by CVE-2019-17342?

It affects 2 products.

Products include Debian Debian Linux, Xen Xen.

How do I fix CVE-2019-17342?

Apply the vendor's patch.

Is CVE-2019-17342 being exploited?

There is no known exploitation of CVE-2019-17342 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-17342, GHSA-8544-f9xf-mg48, UBUNTU-CVE-2019-17342.

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