CVE-2022-29162

What it is

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2022-05-17 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 04:39 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 5.9 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2022-05-17 21:15 UTC

Last modified

2026-06-17 04:39 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-276 · Incorrect default permissions

Record status

Modified

Affected

• Linuxfoundation Runc < 1.1.2
• Fedoraproject Fedora 34
• Fedoraproject Fedora 35
• Fedoraproject Fedora 36

Attack profile CVSS 3.1 · 5.9

Attack vector

Local

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2022-29162.md and follow it. Check whether this project is affected by CVE-2022-29162. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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