{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-21890 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2020-21890 is a high-severity memory corruption vulnerability in Artifex Ghostscript, published on 22 Aug 2023. 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-2020-21890 and fix it if it is affected.\n\nWhat it is: CVE-2020-21890 is a high-severity memory corruption vulnerability in Artifex Ghostscript, published on 22 Aug 2023. 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-2020-21890 exists.\n\nAffected product: Artifex Ghostscript. 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-2020-21890/ (Markdown: https://insights.sbomify.com/CVE-2020-21890/index.md)","id":"CVE-2020-21890","markdown":"https://insights.sbomify.com/CVE-2020-21890/index.md","name":"CVE-2020-21890","record":{"aliases":["DEBIAN-CVE-2020-21890","GHSA-44hq-r6f6-m9g4","UBUNTU-CVE-2020-21890"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Ghostscript library","requires_auth":"none","summary":"Remote attackers can cause denial of service or unspecified impacts via crafted PDFs due to a buffer overflow in Ghostscript.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ghostscript","vendor":"artifex"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex Ghostscript 9.50 allows remote attackers to cause a denial of service or other unspecified impact(s) via opening of crafted PDF document.","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 n/a","id":"CVE-2020-21890","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"artifex:ghostscript","products":["artifex:ghostscript"],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Use after free in n/a","id":"CVE-2020-21896"},"packages":[],"prev":{"headline":"Cross-site request forgery in n/a","id":"CVE-2020-21884"},"products":["n/a"],"published":"2023-08-22","related":[{"cvss_score":7.8,"headline":"Artifex Ghostscript Type Confusion","id":"CVE-2017-8291","kev_date_added":"2022-05-24","published":"2017-04-27"},{"cvss_score":9.9,"headline":"Command injection in ghostscript","id":"CVE-2021-3781","kev_date_added":null,"published":"2022-02-16"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-27831","kev_date_added":null,"published":"2025-03-25"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-27832","kev_date_added":null,"published":"2025-03-25"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2025-27836","kev_date_added":null,"published":"2025-03-25"},{"cvss_score":9.8,"headline":"An issue was discovered in Artifex Ghostscript before 10.05.0.","id":"CVE-2025-27837","kev_date_added":null,"published":"2025-03-25"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2020-36773","kev_date_added":null,"published":"2024-02-04"}],"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":"2024-10-04","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service or unspecified impacts via crafted PDFs due to a buffer overflow in Ghostscript.","url":"https://insights.sbomify.com/CVE-2020-21890/"}