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Servers and applications

CVE-2023-28642

AppArmor/SELinux bypass with symlinked /proc

Severity
High 7.8
Published
29 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
1.1.5
Also known as
GHSA-g2j6-57v7-gm8c
Sources
NVD, Project advisories (GitHub)

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…

Affected software

SoftwareAffected versions
runcServers and applications · cpe:a:linuxfoundation:runc
  • Every version before 1.1.5
runcServers and applications · github:opencontainers/runc
  • Every version before 1.1.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-28642
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-28642
  • GitHub Advisory Database https://github.com/advisories/GHSA-g2j6-57v7-gm8c
  • github.com https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c