CVE-2022-42310 Denial of service in xen

What is CVE-2022-42310?

CVE-2022-42310 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 1 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Xenstore: Guests can create orphaned Xenstore nodes By creating multiple nodes inside a transaction resulting in an error, a malicious guest can create orphaned nodes in the Xenstore data base, as the cleanup after the error will not remove all nodes already created. When the transaction is committed after this situation, nodes without a valid parent can be made permanent in the data base.

Weakness: CWE-459

Which versions are affected by CVE-2022-42310?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Xen Xen.

How do I fix CVE-2022-42310?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-42310 being exploited?

There is no known exploitation of CVE-2022-42310 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-42310, DEBIAN-CVE-2022-42310, GHSA-gw3c-jrpr-59hg, UBUNTU-CVE-2022-42310.