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runc: AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration

🗓️ 30 Jan 2024 12:31:12Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

A flaw in the container runtime allows a container to symlink /proc to bypass AppArmor and SELinux.

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altlinux		Security fix for the ALT Linux 10 package runc version 1.1.5-alt1
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ibm		Security Bulletin: IBM Cloud Kubernetes Service is affected by two containerd security vulnerabilities (CVE-2023-28642) (CVE-2023-27561)
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ibm		Security Bulletin: IBM MQ Operator and Queue manager container images are vulnerable to multiple vulnerabilities from openssl-libs, libssh, libarchive, sqlite and go-toolset
1 Aug 202306:33
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ibm		Security Bulletin: Multiple Vulnerabilities in IBM Concert Software.
18 Aug 202504:31
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ibm		Security Bulletin: IBM InfoSphere Information Server is affected by multiple vulnerabilities in Open Container Initiative runc
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.4ppc64lebuildah1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-1.19.9-1.module+el8.4.0+21078+a96cfbf6.ppc64le.rpm
Red Hat Enterprise Linux8.4x86_64buildah1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-1.19.9-1.module+el8.4.0+21078+a96cfbf6.x86_64.rpm
Red Hat Enterprise Linux8.4ppc64lebuildah-debuginfo1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-debuginfo-1.19.9-1.module+el8.4.0+21078+a96cfbf6.ppc64le.rpm
Red Hat Enterprise Linux8.4x86_64buildah-debuginfo1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-debuginfo-1.19.9-1.module+el8.4.0+21078+a96cfbf6.x86_64.rpm
Red Hat Enterprise Linux8.4ppc64lebuildah-debugsource1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-debugsource-1.19.9-1.module+el8.4.0+21078+a96cfbf6.ppc64le.rpm
Red Hat Enterprise Linux8.4x86_64buildah-debugsource1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-debugsource-1.19.9-1.module+el8.4.0+21078+a96cfbf6.x86_64.rpm
Red Hat Enterprise Linux8.4ppc64lebuildah-tests1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-tests-1.19.9-1.module+el8.4.0+21078+a96cfbf6.ppc64le.rpm
Red Hat Enterprise Linux8.4x86_64buildah-tests1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-tests-1.19.9-1.module+el8.4.0+21078+a96cfbf6.x86_64.rpm
Red Hat Enterprise Linux8.4ppc64lebuildah-tests-debuginfo1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-tests-debuginfo-1.19.9-1.module+el8.4.0+21078+a96cfbf6.ppc64le.rpm
Red Hat Enterprise Linux8.4x86_64buildah-tests-debuginfo1.19.9-1.module+el8.4.0+21078+a96cfbf6buildah-tests-debuginfo-1.19.9-1.module+el8.4.0+21078+a96cfbf6.x86_64.rpm
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03 Jul 2026 17:40Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.16.1 - 7.8
EPSS0.00343
SSVC
CWE-305
container runtimeproc symlinkapparmor bypassselinux bypasssecurity bypass
3