CVE-2023-28642

AppArmor bypass with symlinked /proc in runc

At a glance

Severity: MEDIUM 6.1
EPSS: EPSS 0.34 % · percentile 28 (2026-10-27)
State: PUBLISHED
Published: 2023-03-29
Updated: 2025-02-12
Assigner: GitHub_M
NVD status: Modified

Description

runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L	GitHub_M
CVSS 3.1	MEDIUM 6.1	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

Advisories

GHSA-g2j6-57v7-gm8c — runc AppArmor bypass with symlinked /proc
GO-2023-1683 — AppArmor bypass with symlinked /proc in github.com/opencontainers/runc

European references

ENISA EUVD · EUVD-2023-1007
GCVE · GCVE-0-2023-28642

CERT-FR advisories

CERTFR-2025-AVI-0590 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2024-AVI-0366 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2024-AVI-0350 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:linuxfoundation:runc:*:*:*:*:*:*:*:* < 1.1.5

Affected products

Product	Versions
opencontainers · runc	affected < 1.1.5

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD