{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36747 exists.","fix":"Apply the vendor's patch.","what":"CVE-2023-36747 is a high-severity memory corruption vulnerability in Tonybybell Gtkwave, published on 8 Jan 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2023-36747 and fix it if it is affected.\n\nWhat it is: CVE-2023-36747 is a high-severity memory corruption vulnerability in Tonybybell Gtkwave, published on 8 Jan 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36747 exists.\n\nAffected product: Tonybybell Gtkwave. 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-2023-36747/ (Markdown: https://insights.sbomify.com/CVE-2023-36747/index.md)","id":"CVE-2023-36747","markdown":"https://insights.sbomify.com/CVE-2023-36747/index.md","name":"CVE-2023-36747","record":{"aliases":["DEBIAN-CVE-2023-36747","GHSA-cf7q-84pj-gw7g","UBUNTU-CVE-2023-36747"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GTKWave waveform viewer","requires_auth":"none","summary":"A heap-based buffer overflow in GTKWave allows attackers to execute arbitrary code or cause denial of service by tricking a user into opening a malicious .fst file.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"talos","cpe":[{"product":"gtkwave","vendor":"tonybybell"}],"cvss":{"score":7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 fstWritex len functionality of GTKWave 3.3.115. A specially crafted .fst file can lead to memory corruption. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the handling of `len` in `fstWritex` when `beg_time` does not match the start of the time table.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Memory corruption in GTKWave","id":"CVE-2023-36747","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"tonybybell:gtkwave","products":["tonybybell:gtkwave"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Weak cryptography in RUGGEDCOM ROX MX5000","id":"CVE-2023-36748"},"packages":[],"prev":{"headline":"Memory corruption in GTKWave","id":"CVE-2023-36746"},"products":["GTKWave"],"published":"2024-01-08","related":[{"cvss_score":7.8,"headline":"Memory corruption in GTKWave","id":"CVE-2023-34087","kev_date_added":null,"published":"2024-01-08"},{"cvss_score":7.8,"headline":"Memory corruption in GTKWave","id":"CVE-2023-34436","kev_date_added":null,"published":"2024-01-08"},{"cvss_score":7.8,"headline":"Integer overflow in GTKWave","id":"CVE-2023-35004","kev_date_added":null,"published":"2024-01-08"},{"cvss_score":7.8,"headline":"Integer overflow in GTKWave","id":"CVE-2023-35057","kev_date_added":null,"published":"2024-01-08"},{"cvss_score":7.8,"headline":"Memory corruption in GTKWave","id":"CVE-2023-35702","kev_date_added":null,"published":"2024-01-08"},{"cvss_score":7.8,"headline":"Memory corruption in GTKWave","id":"CVE-2023-35703","kev_date_added":null,"published":"2024-01-08"},{"cvss_score":7.8,"headline":"Memory corruption in GTKWave","id":"CVE-2023-35704","kev_date_added":null,"published":"2024-01-08"}],"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["GTKWave"]},"summary":"A heap-based buffer overflow in GTKWave allows attackers to execute arbitrary code or cause denial of service by tricking a user into opening a malicious .fst file.","url":"https://insights.sbomify.com/CVE-2023-36747/"}