{"answers":{"affected":"It affects 28 products.","exploited":"There is no known exploitation of CVE-2021-34585 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34585 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34585 is a high-severity vulnerability in CODESYS V2, published on 26 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34585 and fix it if it is affected.\n\nWhat it is: CVE-2021-34585 is a high-severity vulnerability in CODESYS V2, published on 26 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-34585 in the wild and no public exploit code.\n\nAffected product: CODESYS V2. 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-2021-34585/ (Markdown: https://insights.sbomify.com/CVE-2021-34585/index.md)","id":"CVE-2021-34585","markdown":"https://insights.sbomify.com/CVE-2021-34585/index.md","name":"CVE-2021-34585","record":{"aliases":["GHSA-rhmm-fwg9-r5m5"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"CODESYS V2 web server","requires_auth":"none","summary":"Crafted requests to the CODESYS V2 web server cause a null pointer dereference, resulting in a denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERTVDE","cpe":[{"product":"codesys","vendor":"codesys"},{"product":"750-8202_firmware","vendor":"wago"},{"product":"750-8203_firmware","vendor":"wago"},{"product":"750-8204_firmware","vendor":"wago"},{"product":"750-8206_firmware","vendor":"wago"},{"product":"750-8207_firmware","vendor":"wago"},{"product":"750-8208_firmware","vendor":"wago"},{"product":"750-8210_firmware","vendor":"wago"},{"product":"750-8211_firmware","vendor":"wago"},{"product":"750-8212_firmware","vendor":"wago"},{"product":"750-8213_firmware","vendor":"wago"},{"product":"750-8214_firmware","vendor":"wago"},{"product":"750-8216_firmware","vendor":"wago"},{"product":"750-8217_firmware","vendor":"wago"},{"product":"750-823_firmware","vendor":"wago"},{"product":"750-829_firmware","vendor":"wago"},{"product":"750-831_firmware","vendor":"wago"},{"product":"750-832_firmware","vendor":"wago"},{"product":"750-852_firmware","vendor":"wago"},{"product":"750-862_firmware","vendor":"wago"},{"product":"750-880_firmware","vendor":"wago"},{"product":"750-881_firmware","vendor":"wago"},{"product":"750-882_firmware","vendor":"wago"},{"product":"750-885_firmware","vendor":"wago"},{"product":"750-889_firmware","vendor":"wago"},{"product":"750-890_firmware","vendor":"wago"},{"product":"750-891_firmware","vendor":"wago"},{"product":"750-893_firmware","vendor":"wago"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-252","name":"Unchecked Return Value"}],"description":"In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.","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":"CODESYS V2 web server: crafted requests could trigger a pointer dereference with an invalid address (DoS)","id":"CVE-2021-34585","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"CODESYS V2 web server: crafted requests could trigger a null pointer dereference (DoS)","id":"CVE-2021-34586"},"packages":[],"prev":{"headline":"CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)","id":"CVE-2021-34584"},"products":["CODESYS V2"],"published":"2021-10-26","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2019-16265","kev_date_added":null,"published":"2019-10-25"},{"cvss_score":9.1,"headline":"CODESYS V2 web server: crafted requests could trigger a buffer over-read (DoS)","id":"CVE-2021-34584","kev_date_added":null,"published":"2021-10-26"},{"cvss_score":8.8,"headline":"Deserialization in CODESYS","id":"CVE-2021-21869","kev_date_added":null,"published":"2021-08-25"},{"cvss_score":8.8,"headline":"Deserialization in CODESYS","id":"CVE-2021-21867","kev_date_added":null,"published":"2021-08-18"},{"cvss_score":8.8,"headline":"Deserialization in CODESYS","id":"CVE-2021-21868","kev_date_added":null,"published":"2021-08-18"},{"cvss_score":8.6,"headline":"Code injection in n/a","id":"CVE-2019-13538","kev_date_added":null,"published":"2019-09-17"},{"cvss_score":8.1,"headline":"CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service","id":"CVE-2021-34595","kev_date_added":null,"published":"2021-10-26"}],"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":["CODESYS"]},"summary":"Crafted requests to the CODESYS V2 web server cause a null pointer dereference, resulting in a denial of service.","url":"https://insights.sbomify.com/CVE-2021-34585/"}