CVE-2022-29162

Incorrect Default Permissions in runc

Description

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: opencontainers runc
Published at:
Updated at:

References

Link Tags
https://github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66 third party advisory
https://github.com/opencontainers/runc/commit/d04de3a9b72d7a2455c1885fc75eb36d02cd17b5 third party advisory patch
https://github.com/opencontainers/runc/releases/tag/v1.1.2 third party advisory release notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D77CKD3AXPMU4PMQIQI5Q74SI4JATNND/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GPQU4YC4AAY54JDXGDQHJEYKSXXG5T2Y/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVPZBV7ISA7QKRPTC7ZXWKMIQI2HZEBB/ vendor advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html mailing list

Frequently Asked Questions

What is the severity of CVE-2022-29162?
CVE-2022-29162 has been scored as a medium severity vulnerability.
How to fix CVE-2022-29162?
To fix CVE-2022-29162, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29162 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29162 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-29162?
CVE-2022-29162 affects opencontainers runc.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.