{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-43316 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2021-43316 is a high-severity memory corruption vulnerability in upx, published on 24 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-43316 and fix it if it is affected.\n\nWhat it is: CVE-2021-43316 is a high-severity memory corruption vulnerability in upx, published on 24 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-43316 exists.\n\nAffected product: upx. 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-2021-43316/ (Markdown: https://insights.sbomify.com/CVE-2021-43316/index.md)","id":"CVE-2021-43316","markdown":"https://insights.sbomify.com/CVE-2021-43316/index.md","name":"CVE-2021-43316","record":{"aliases":["DEBIAN-CVE-2021-43316","GHSA-p7p3-32mv-p6h3","UBUNTU-CVE-2021-43316"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"UPX executable packer","requires_auth":"none","summary":"A heap-based buffer overflow in UPX allows attackers to execute arbitrary code or cause denial of service via crafted input.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"fedora","cpe":[{"product":"upx","vendor":"upx"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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":"A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le64().","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 upx","id":"CVE-2021-43316","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in upx","id":"CVE-2021-43317"},"packages":[],"prev":{"headline":"Memory corruption in upx","id":"CVE-2021-43315"},"products":["upx"],"published":"2023-03-24","related":[{"cvss_score":7.8,"headline":"Memory corruption in upx","id":"CVE-2020-27796","kev_date_added":null,"published":"2022-08-25"},{"cvss_score":7.8,"headline":"Memory corruption in upx","id":"CVE-2020-27799","kev_date_added":null,"published":"2022-08-25"},{"cvss_score":7.8,"headline":"Memory corruption in upx","id":"CVE-2020-27800","kev_date_added":null,"published":"2022-08-25"},{"cvss_score":7.8,"headline":"Memory corruption in upx","id":"CVE-2020-27801","kev_date_added":null,"published":"2022-08-25"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2019-14296","kev_date_added":null,"published":"2019-07-27"},{"cvss_score":7.8,"headline":"Use after free in n/a","id":"CVE-2018-11243","kev_date_added":null,"published":"2018-05-18"},{"cvss_score":7.8,"headline":"Denial of service in n/a","id":"CVE-2017-16869","kev_date_added":null,"published":"2017-11-17"}],"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-25","vendors":["n/a"]},"summary":"A heap-based buffer overflow in UPX allows attackers to execute arbitrary code or cause denial of service via crafted input.","url":"https://insights.sbomify.com/CVE-2021-43316/"}