{"answers":{"affected":"4 open source packages ship an affected version, including github.com/kubernetes-csi/external-snapshotter/v2 and github.com/kubernetes-csi/external-snapshotter/v3. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8569 in the wild and no public exploit code.","fix":"Upgrade github.com/kubernetes-csi/external-snapshotter/v2 to 2.1.3 or later.","what":"CVE-2020-8569 is a medium-severity vulnerability in Kubernetes CSI Snapshotter, published on 21 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8569 and fix it if it is affected.\n\nWhat it is: CVE-2020-8569 is a medium-severity vulnerability in Kubernetes CSI Snapshotter, published on 21 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8569 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/kubernetes-csi/external-snapshotter/v2 (Go): affected from 2.0.0; fixed in 2.1.3\n- github.com/kubernetes-csi/external-snapshotter/v2 (Go): affected from 2.0.0; fixed in 2.1.3\n- github.com/kubernetes-csi/external-snapshotter/v3 (Go): affected from 3.0.0; fixed in 3.0.2\n- github.com/kubernetes-csi/external-snapshotter/v3 (Go): affected from 3.0.0; fixed in 3.0.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-8569/ (Markdown: https://insights.sbomify.com/CVE-2020-8569/index.md)","id":"CVE-2020-8569","markdown":"https://insights.sbomify.com/CVE-2020-8569/index.md","name":"CVE-2020-8569","record":{"aliases":["GHSA-hwrr-rhmm-vcvf"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Kubernetes CSI snapshot-controller","requires_auth":"low_privilege","summary":"Attackers can cause a crashloop in the Kubernetes CSI snapshot-controller by submitting specific VolumeSnapshot resources, preventing volume snapshot operations.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"kubernetes","cpe":[{"product":"container_storage_interface_snapshotter","vendor":"kubernetes"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can’t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Kubernetes CSI snapshot-controller DoS","id":"CVE-2020-8569","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"null_dereference","year":"2020"},"n_packages":4,"n_references":2,"next":{"headline":"Kubernetes Java client libraries unvalidated path traversal in Copy implementation","id":"CVE-2020-8570"},"packages":[{"ecosystem":"Go","fixed":["2.1.3"],"introduced":["2.0.0"],"last_affected":[],"package":"github.com/kubernetes-csi/external-snapshotter/v2","purl":null,"source":"GHSA-hwrr-rhmm-vcvf"},{"ecosystem":"Go","fixed":["2.1.3"],"introduced":["2.0.0"],"last_affected":[],"package":"github.com/kubernetes-csi/external-snapshotter/v2","purl":"pkg:golang/github.com/kubernetes-csi/external-snapshotter/v2","source":"GHSA-hwrr-rhmm-vcvf"},{"ecosystem":"Go","fixed":["3.0.2"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/kubernetes-csi/external-snapshotter/v3","purl":null,"source":"GHSA-hwrr-rhmm-vcvf"},{"ecosystem":"Go","fixed":["3.0.2"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/kubernetes-csi/external-snapshotter/v3","purl":"pkg:golang/github.com/kubernetes-csi/external-snapshotter/v3","source":"GHSA-hwrr-rhmm-vcvf"}],"prev":{"headline":"Kubernetes Secrets Store CSI Driver sync/rotate directory traversal","id":"CVE-2020-8568"},"products":["CSI Snapshotter"],"published":"2021-01-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["Kubernetes"]},"summary":"Attackers can cause a crashloop in the Kubernetes CSI snapshot-controller by submitting specific VolumeSnapshot resources, preventing volume snapshot operations.","url":"https://insights.sbomify.com/CVE-2020-8569/"}