RHSA-2024:2064
Vulnerability from csaf_redhat - Published: 2024-04-25 15:10 - Updated: 2026-09-24 23:37A 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.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-1:1.29.3-1.el9_2.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-1:1.29.3-1.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-1:1.29.3-1.el9_2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-1:1.29.3-1.el9_2.src | — |
Vendor Fix
fix
Workaround
|
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| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-1:1.29.3-1.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debuginfo-1:1.29.3-1.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debuginfo-1:1.29.3-1.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debuginfo-1:1.29.3-1.el9_2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debuginfo-1:1.29.3-1.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debugsource-1:1.29.3-1.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debugsource-1:1.29.3-1.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debugsource-1:1.29.3-1.el9_2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-debugsource-1:1.29.3-1.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-1:1.29.3-1.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-1:1.29.3-1.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-1:1.29.3-1.el9_2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-1:1.29.3-1.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-debuginfo-1:1.29.3-1.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-debuginfo-1:1.29.3-1.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-debuginfo-1:1.29.3-1.el9_2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.2.0.Z.EUS:buildah-tests-debuginfo-1:1.29.3-1.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
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"name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
},
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"title": "Vulnerability description"
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"text": "buildah: Buildah: Container escape via improper bind mount validation",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat has rated this vulnerability as Important rather than Critical because successful exploitation requires user interaction to process a maliciously crafted Containerfile. Additionally, default security hardening in Red Hat Enterprise Linux\u2014specifically SELinux running in Enforcing mode\u2014prevents unauthorized write access to host system files, restricting the potential breakout primarily to unauthorized read operations. Environments where container builds are executed with elevated host permissions against untrusted source definitions face the highest risk.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.