{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-4756 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-4756 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-4756 is a medium-severity denial of service vulnerability in Ibm Spectrum Scale, published on 20 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-4756 and fix it if it is affected.\n\nWhat it is: CVE-2020-4756 is a medium-severity denial of service vulnerability in Ibm Spectrum Scale, published on 20 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-4756 in the wild and no public exploit code.\n\nAffected product: Ibm Spectrum Scale. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2020-4756/ (Markdown: https://insights.sbomify.com/CVE-2020-4756/index.md)","id":"CVE-2020-4756","markdown":"https://insights.sbomify.com/CVE-2020-4756/index.md","name":"CVE-2020-4756","record":{"aliases":["GHSA-46j4-jqcq-j7qj"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"IBM Spectrum Scale","requires_auth":"none","summary":"A local attacker can crash the kernel by invoking specific ioctls with invalid arguments, causing a denial of service in IBM Spectrum Scale.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"elastic_storage_server","vendor":"ibm"},{"product":"spectrum_scale","vendor":"ibm"}],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:3.0/A:H/C:N/PR:N/UI:N/S:U/I:N/AC:L/AV:L/RL:O/RC:C/E:U","version":"3.0"},"cwes":[{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"IBM Spectrum Scale V4.2.0.0 through V4.2.3.23 and V5.0.0.0 through V5.0.5.2 as well as IBM Elastic Storage System 6.0.0 through 6.0.1.0 could allow a local attacker to invoke a subset of ioctls on the device with invalid arguments that could crash the keneral and cause a denial of service. IBM X-Force ID: 188599.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in Elastic Storage Server","id":"CVE-2020-4756","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ibm:spectrum_scale","products":["ibm:spectrum_scale"],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"Cross-site scripting in Content Navigator","id":"CVE-2020-4757"},"packages":[],"prev":{"headline":"Cross-site scripting in Spectrum Scale","id":"CVE-2020-4755"},"products":["Elastic Storage Server","Spectrum Scale"],"published":"2020-10-20","related":[{"cvss_score":8.4,"headline":"Privilege escalation in n/a","id":"CVE-2016-0392","kev_date_added":null,"published":"2016-06-19"},{"cvss_score":7.5,"headline":"Denial of service in Elastic Storage Server","id":"CVE-2020-5015","kev_date_added":null,"published":"2021-03-24"},{"cvss_score":6.2,"headline":"Denial of service in Elastic Storage Server","id":"CVE-2020-4382","kev_date_added":null,"published":"2020-08-24"},{"cvss_score":6.2,"headline":"Memory corruption in Elastic Storage Server","id":"CVE-2017-1304","kev_date_added":null,"published":"2017-06-21"},{"cvss_score":5.3,"headline":"Denial of service in Elastic Storage Server","id":"CVE-2020-4383","kev_date_added":null,"published":"2020-08-24"},{"cvss_score":5.3,"headline":"Denial of service in Elastic Storage Server","id":"CVE-2020-4381","kev_date_added":null,"published":"2020-08-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2024-09-16","vendors":["IBM"]},"summary":"A local attacker can crash the kernel by invoking specific ioctls with invalid arguments, causing a denial of service in IBM Spectrum Scale.","url":"https://insights.sbomify.com/CVE-2020-4756/"}