CVE-2022-23950 Denial of service in keylime

High 7.5 Published 21 Sep 2022 Updated 27 May 2025

Unprivileged users can prevent Keylime operations by exploiting a fixed temporary path for the Revocation Notifier socket.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-23950?

CVE-2022-23950 is a high-severity denial of service vulnerability in keylime, published on 21 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Keylime before 6.3.0, Revocation Notifier uses a fixed /tmp path for UNIX domain socket which can allow unprivileged users a method to prohibit keylime operations.

Weakness: CWE-668, CWE-379

Which versions are affected by CVE-2022-23950?

It affects 1 product.

Products include Keylime Keylime.

How do I fix CVE-2022-23950?

No fix has been published for CVE-2022-23950 yet. Limit exposure of the affected software until one is available.

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-2022-23950 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23950 exists.

Sources

Also known as GHSA-9r9r-f8xc-m875.