{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-20056 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-20056 is a medium-severity denial of service vulnerability in n/a, published on 29 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2019-20056 and fix it if it is affected.\n\nWhat it is: CVE-2019-20056 is a medium-severity denial of service vulnerability in n/a, published on 29 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2019-20056 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2019-20056/ (Markdown: https://insights.sbomify.com/CVE-2019-20056/index.md)","id":"CVE-2019-20056","markdown":"https://insights.sbomify.com/CVE-2019-20056/index.md","name":"CVE-2019-20056","record":{"aliases":["DEBIAN-CVE-2019-20056","GHSA-f76f-ffcv-7fmm","UBUNTU-CVE-2019-20056"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"stb image loader","requires_auth":"none","summary":"An assertion failure in the stb image loader allows attackers to cause a denial of service via crafted image files.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"stb_image.h","vendor":"nothings"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has an assertion failure in stbi__shiftsigned.","ecosystems":[],"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":"Denial of service in n/a","id":"CVE-2019-20056","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Security feature bypass in n/a","id":"CVE-2019-20057"},"packages":[],"prev":{"headline":"Server-side request forgery in n/a","id":"CVE-2019-20055"},"products":["n/a"],"published":"2019-12-29","related":[{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2019-19777","kev_date_added":null,"published":"2019-12-13"},{"cvss_score":7.3,"headline":"Double-free in stbi__load_gif_main_outofmem in stb_image","id":"CVE-2023-45664","kev_date_added":null,"published":"2023-10-20"},{"cvss_score":7.3,"headline":"Possible double-free or memory leak in stbi__load_gif_main in stb_image","id":"CVE-2023-45666","kev_date_added":null,"published":"2023-10-20"},{"cvss_score":6.5,"headline":"Use after free in n/a","id":"CVE-2023-43281","kev_date_added":null,"published":"2023-10-24"},{"cvss_score":6.5,"headline":"Wild address read in stbi__gif_load_next in stb_image","id":"CVE-2023-45661","kev_date_added":null,"published":"2023-10-20"},{"cvss_score":6.5,"headline":"Multi-byte read heap buffer overflow in stbi__vertical_flip in stb_image","id":"CVE-2023-45662","kev_date_added":null,"published":"2023-10-20"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"An assertion failure in the stb image loader allows attackers to cause a denial of service via crafted image files.","url":"https://insights.sbomify.com/CVE-2019-20056/"}