CVE-2023-28642: runc AppArmor bypass with symlinked /proc

March 30, 2023 (updated December 6, 2024)

It was found that AppArmor, and potentially SELinux, can be bypassed when /proc inside the container is symlinked with a specific mount configuration.

References

github.com/advisories/GHSA-g2j6-57v7-gm8c
github.com/opencontainers/runc
github.com/opencontainers/runc/pull/3785
github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c
nvd.nist.gov/vuln/detail/CVE-2023-28642
security.netapp.com/advisory/ntap-20241206-0005

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