CVE-2024-1753: Buildah: full container escape at build time

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.

Classification

CVE ID: CVE-2024-1753

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 14.99% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

Timeline

2024-11-27 14:52:05 UTC
CVE

Buildah: full container escape at build time