{"answers":{"affected":"3 open source packages ship an affected version, including pillow. It affects 1 product.","exploited":"There is no known exploitation of CVE-2016-4009 in the wild and no public exploit code.","fix":"Upgrade pillow to 3.1.1 or later.","what":"CVE-2016-4009 is a critical vulnerability in Python Pillow, published on 13 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-4009 and fix it if it is affected.\n\nWhat it is: CVE-2016-4009 is a critical vulnerability in Python Pillow, published on 13 Apr 2016. 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-2016-4009 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pillow (PyPI): affected all versions; fixed in 3.1.1\n- pillow (PyPI): affected all versions; fixed in 3.1.1\n- pillow (PyPI): affected all versions; fixed in 3.1.1\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-2016-4009/ (Markdown: https://insights.sbomify.com/CVE-2016-4009/index.md)","id":"CVE-2016-4009","markdown":"https://insights.sbomify.com/CVE-2016-4009/index.md","name":"CVE-2016-4009","record":{"aliases":["DEBIAN-CVE-2016-4009","GHSA-hvr8-466p-75rh","PYSEC-2016-7"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python imaging library","requires_auth":"none","summary":"Remote attackers can trigger a heap-based buffer overflow via negative size values, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"pillow","vendor":"python"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"Integer overflow in the ImagingResampleHorizontal function in libImaging/Resample.c in Pillow before 3.1.1 allows remote attackers to have unspecified impact via negative values of the new size, which triggers a heap-based buffer overflow.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Pillow Integer overflow in ImagingResampleHorizontal","id":"CVE-2016-4009","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"python:pillow","products":["python:pillow"],"type":"integer_overflow","year":"2016"},"n_packages":3,"n_references":5,"next":{"headline":"Deserialization in n/a","id":"CVE-2016-4010"},"packages":[{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":null,"source":"GHSA-hvr8-466p-75rh"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"GHSA-hvr8-466p-75rh"},{"ecosystem":"PyPI","fixed":["3.1.1"],"introduced":["0"],"last_affected":[],"package":"pillow","purl":"pkg:pypi/pillow","source":"PYSEC-2016-7"}],"prev":{"headline":"Denial of service in n/a","id":"CVE-2016-4008"},"products":["n/a"],"published":"2016-04-13","related":[{"cvss_score":10,"headline":"Pillow command injection","id":"CVE-2014-3007","kev_date_added":null,"published":"2014-04-27"},{"cvss_score":9.8,"headline":"Pillow multi-frame loaders can reuse stale native image storage after mode transitions","id":"CVE-2026-96639","kev_date_added":null,"published":"2026-10-21"},{"cvss_score":9.8,"headline":"Buffer over-flow in Pillow","id":"CVE-2022-30595","kev_date_added":null,"published":"2022-05-25"},{"cvss_score":9.8,"headline":"Out of bounds write in Pillow","id":"CVE-2021-25289","kev_date_added":null,"published":"2021-03-19"},{"cvss_score":9.2,"headline":"Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO","id":"CVE-2026-112393","kev_date_added":null,"published":"2026-10-19"},{"cvss_score":9.2,"headline":"Pillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution","id":"CVE-2026-112398","kev_date_added":null,"published":"2026-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2024-08-06","vendors":["n/a"]},"summary":"Remote attackers can trigger a heap-based buffer overflow via negative size values, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2016-4009/"}