Kubeflow Pipelines: Pipeline archive upload allows decompression bomb to exhaust server memory

pipelines · CWE-409 · CWE-409

Affectedpipelines

FixNo fix listed yet.

PublishedOct 29, 16:37 · GitHub_M

ScoredOct 29 · 7.5 · GitHub_M

Exploit code publicNone known · checked 21:18 UTC

ExploitedNone known · CISA KEV checked 22:10 UTC

What we know

No known exploitation. CISA KEV, checked 22:10 UTC.

No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.

An attacker only needs network access to the target. No login needed. CVSS: network, no privileges.

A successful attack can take the service down. CVSS impact.

Description

Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the API server decompressed uploaded pipeline archives without adequately bounding expanded data while locating or reading the pipeline file. A small ZIP or gzip-compressed tar archive can consume disproportionately large memory and exhaust API-server resources. Multipart pipeline and pipeline-version upload processing performs decompression before namespace authorization, so a reachable caller does not need a successful pipeline-create authorization decision. URL-import handlers authorize before fetching and decompressing a remote archive. The amount of expansion required to interrupt service depends on deployment resource limits and concurrent activity, and no specific archive is guaranteed to crash every deployment. This issue is fixed in version 2.18.0.

From GitHub_M

Affected and fixed versions

ProductAffectedFixed inpipelines< 2.18.0–

Exploit code

Exploit-DBnone knownMetasploitnone knownNucleinone known

References

github.com/kubeflow/pipelines/security/advisories/GHSA-8fmv-6rg5-5924 · github.comrefsource_CONFIRM github.com/kubeflow/pipelines/pull/14171 · github.comrefsource_MISC github.com/kubeflow/pipelines/pull/14186 · github.comrefsource_MISC github.com/kubeflow/pipelines/commit/1121d9a081fdf9e2107c39abb2cd8947727c6953 · github.comrefsource_MISC github.com/kubeflow/pipelines/commit/ba9ae72cc860e3afbea232185e4132fc2896cac5 · github.comrefsource_MISC github.com/kubeflow/pipelines/releases/tag/2.18.0 · github.comrefsource_MISC

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