{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-27274 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-27274 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-27274 is a high-severity denial of service vulnerability in OPC UA Tunneller, published on 26 Jan 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-2020-27274 and fix it if it is affected.\n\nWhat it is: CVE-2020-27274 is a high-severity denial of service vulnerability in OPC UA Tunneller, published on 26 Jan 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-2020-27274 in the wild and no public exploit code.\n\nAffected product: OPC UA Tunneller. 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-2020-27274/ (Markdown: https://insights.sbomify.com/CVE-2020-27274/index.md)","id":"CVE-2020-27274","markdown":"https://insights.sbomify.com/CVE-2020-27274/index.md","name":"CVE-2020-27274","record":{"aliases":["GHSA-p5jr-488h-j8p7"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OPC UA Tunneller","requires_auth":"none","summary":"Attackers can cause a denial-of-service condition in the OPC UA Tunneller by triggering a failure in message parsing functions that do not check malloc return values.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"opc_ua_tunneller","vendor":"honeywell"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-754","name":"Improper Check for Unusual or Exceptional Conditions"}],"description":"Some parsing functions in the affected product do not check the return value of malloc and the thread handling the message is forced to close, which may lead to a denial-of-service condition on the OPC UA Tunneller (versions prior to 6.3.0.8233).","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 OPC UA Tunneller","id":"CVE-2020-27274","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in Delta Electronics","id":"CVE-2020-27275"},"packages":[],"prev":{"headline":"Auth bypass in SOOIL Developments CoLtd DiabecareRS,AnyDana-i,AnyDana-A","id":"CVE-2020-27272"},"products":["OPC UA Tunneller"],"published":"2021-01-26","related":[{"cvss_score":9.8,"headline":"Memory corruption in OPC UA Tunneller","id":"CVE-2020-27297","kev_date_added":null,"published":"2021-01-26"},{"cvss_score":9.1,"headline":"Information disclosure in OPC UA Tunneller","id":"CVE-2020-27299","kev_date_added":null,"published":"2021-01-26"},{"cvss_score":7.5,"headline":"Denial of service in OPC UA Tunneller","id":"CVE-2020-27295","kev_date_added":null,"published":"2021-01-26"}],"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":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can cause a denial-of-service condition in the OPC UA Tunneller by triggering a failure in message parsing functions that do not check malloc return values.","url":"https://insights.sbomify.com/CVE-2020-27274/"}