{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20042 exists.","fix":"No fix has been published for CVE-2016-20042 yet. Limit exposure of the affected software until one is available.","what":"CVE-2016-20042 is a high-severity memory corruption vulnerability in trn Threaded USENET News Reader, published on 28 Mar 2026. 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-2016-20042 and fix it if it is affected.\n\nWhat it is: CVE-2016-20042 is a high-severity memory corruption vulnerability in trn Threaded USENET News Reader, published on 28 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20042 exists.\n\nAffected product: trn Threaded USENET News Reader. 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-2016-20042/ (Markdown: https://insights.sbomify.com/CVE-2016-20042/index.md)","id":"CVE-2016-20042","markdown":"https://insights.sbomify.com/CVE-2016-20042/index.md","name":"CVE-2016-20042","record":{"aliases":["GHSA-g7ph-9gx9-ch48","UBUNTU-CVE-2016-20042"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"USENET news reader","requires_auth":"none","summary":"Local attackers can execute arbitrary code via a stack buffer overflow in TRN by supplying oversized command-line arguments.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"TRN 3.6-23 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the application. Attackers can craft a malicious command-line argument with 156 bytes of padding followed by a return address to overwrite the instruction pointer and execute shellcode with user privileges.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"TRN 3.6-23 Stack Buffer Overflow Local Code Execution","id":"CVE-2016-20042","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2016"},"n_packages":0,"n_references":3,"next":{"headline":"NRSS RSS Reader 0.3.9-1 Stack Buffer Overflow","id":"CVE-2016-20043"},"packages":[],"prev":{"headline":"Yasr 0.6.9-5 Buffer Overflow via Command-line Parameter","id":"CVE-2016-20041"},"products":["Threaded USENET News Reader"],"published":"2026-03-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-03-30","vendors":["trn"]},"summary":"Local attackers can execute arbitrary code via a stack buffer overflow in TRN by supplying oversized command-line arguments.","url":"https://insights.sbomify.com/CVE-2016-20042/"}