CVE-2024-1753: Buildah: buildah: container escape via improper bind mount validation

Severity: high (CVSS 8.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-18 · updated 2026-09-25
Weakness: CWE-59

Description

A flaw was found in Buildah (and subsequently Podman Build) which allows containers to mount arbitrary locations on the host filesystem into build containers. A malicious Containerfile can use a dummy image with a symbolic link to the root filesystem as a mount source and cause the mount operation to mount the host root filesystem inside the RUN step. The commands inside the RUN step will then have read-write access to the host filesystem, allowing for full container escape at build time.

Affected products

Red Hat Enterprise Linux 8: all versions — fixed in 8090020240413110917.d7b6f4b7, 8090020240417184044.e7857ab1, 8100020240419145834.afee755d
Red Hat Enterprise Linux 8.6 Extended Update Support: all versions — fixed in 8060020240419071711.2e213529, 8060020240422155330.3b538bd8
Red Hat Enterprise Linux 8.8 Extended Update Support: all versions — fixed in 8080020240422101606.0f77c1b7
Red Hat Enterprise Linux 9: all versions — fixed in 1:1.31.5-1.el9_3, 4:4.9.4-3.el9_4
Red Hat Enterprise Linux 9.0 Extended Update Support: all versions — fixed in 1:1.26.7-1.el9_0, 2:4.2.0-3.el9_0
Red Hat Enterprise Linux 9.2 Extended Update Support: all versions — fixed in 1:1.29.3-1.el9_2, 2:4.4.1-16.el9_2
Red Hat OpenShift Container Platform 4.12: all versions — fixed in 3:4.4.1-3.2.rhaos4.12.el8
Red Hat OpenShift Container Platform 4.13: all versions — fixed in 3:4.4.1-5.3.rhaos4.13.el8, 3:4.4.1-7.3.rhaos4.13.el8
Red Hat OpenShift Container Platform 4.14: all versions — fixed in 3:4.4.1-13.4.rhaos4.14.el8
Red Hat OpenShift Container Platform 4.15: all versions — fixed in 3:4.4.1-23.2.rhaos4.15.el8

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 8 8090020240413110917.d7b6f4b7, 8090020240417184044.e7857ab1, 8100020240419145834.afee755d; Red Hat Enterprise Linux 8.6 Extended Update Support 8060020240419071711.2e213529, 8060020240422155330.3b538bd8; Red Hat Enterprise Linux 8.8 Extended Update Support 8080020240422101606.0f77c1b7; Red Hat Enterprise Linux 9 1:1.31.5-1.el9_3, 4:4.9.4-3.el9_4; Red Hat Enterprise Linux 9.0 Extended Update Support 1:1.26.7-1.el9_0, 2:4.2.0-3.el9_0; Red Hat Enterprise Linux 9.2 Extended Update Support 1:1.29.3-1.el9_2, 2:4.4.1-16.el9_2; Red Hat OpenShift Container Platform 4.12 3:4.4.1-3.2.rhaos4.12.el8; Red Hat OpenShift Container Platform 4.13 3:4.4.1-5.3.rhaos4.13.el8, 3:4.4.1-7.3.rhaos4.13.el8; Red Hat OpenShift Container Platform 4.14 3:4.4.1-13.4.rhaos4.14.el8; Red Hat OpenShift Container Platform 4.15 3:4.4.1-23.2.rhaos4.15.el8. Check the vendor advisory for mitigations.

References

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