CVE-2022-31214 Privilege escalation in n/a

What is CVE-2022-31214?

CVE-2022-31214 is a high-severity vulnerability in Debian Debian Linux, published on 9 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A Privilege Context Switching issue was discovered in join.c in Firejail 0.9.68. By crafting a bogus Firejail container that is accepted by the Firejail setuid-root program as a join target, a local attacker can enter an environment in which the Linux user namespace is still the initial user namespace, the NO_NEW_PRIVS prctl is not activated, and the entered mount namespace is under the attacker's control. In this way, the filesystem layout can be adjusted to gain root privileges through execution of available setuid-root binaries such as su or sudo.

Weakness: CWE-269

Which versions are affected by CVE-2022-31214?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Firejail Project Firejail.

How do I fix CVE-2022-31214?

Apply the vendor's patch.

Is CVE-2022-31214 being exploited?

There is no known exploitation of CVE-2022-31214 in the wild and no public exploit code.

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• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2022-31214, DLA-3061-1, DSA-5167-1, GHSA-m2xv-wgqg-4gxh, MGASA-2022-0348, UBUNTU-CVE-2022-31214 and 3 more.