CVE-2022-42012 Denial of service in n/a

What is CVE-2022-42012?

CVE-2022-42012 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 9 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. An authenticated attacker can cause dbus-daemon and other programs that use libdbus to crash by sending a message with attached file descriptors in an unexpected format.

Weakness: CWE-20

Which versions are affected by CVE-2022-42012?

It affects 2 products.

Products include Fedoraproject Fedora, Freedesktop Dbus.

How do I fix CVE-2022-42012?

Upgrade to a fixed version.

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-2022-42012 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-42012 exists.

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• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as ALPINE-CVE-2022-42012, AZL-11093, DEBIAN-CVE-2022-42012, GHSA-7v94-mgqj-cj58, JLSEC-2025-21, UBUNTU-CVE-2022-42012.