{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-28831 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-28831 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 19 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-28831 and fix it if it is affected.\n\nWhat it is: CVE-2021-28831 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 19 Mar 2021. 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-2021-28831 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2021-28831/ (Markdown: https://insights.sbomify.com/CVE-2021-28831/index.md)","id":"CVE-2021-28831","markdown":"https://insights.sbomify.com/CVE-2021-28831/index.md","name":"CVE-2021-28831","record":{"aliases":["ALPINE-CVE-2021-28831","AZL-6342","CLSA-2021-1635459154","DEBIAN-CVE-2021-28831","DLA-2614-1","GHSA-7w53-225r-6vxv","MGASA-2021-0310","OESA-2021-1162","UBUNTU-CVE-2021-28831","USN-5179-2"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"BusyBox utility","requires_auth":"none","summary":"An attacker can cause a denial of service via malformed gzip data due to improper error handling in BusyBox decompression.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"busybox","vendor":"busybox"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N","version":"3.1"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"}],"description":"decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.","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":"Memory corruption in n/a","id":"CVE-2021-28831","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":6,"next":{"headline":"Code injection in n/a","id":"CVE-2021-28832"},"packages":[],"prev":{"headline":"TIBCO Spotfire Windows Platform Artifact Search vulnerability","id":"CVE-2021-28830"},"products":["n/a"],"published":"2021-03-19","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2022-48174","kev_date_added":null,"published":"2023-08-22"},{"cvss_score":9.8,"headline":"Memory corruption in busybox","id":"CVE-2021-42377","kev_date_added":null,"published":"2021-11-15"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2016-2148","kev_date_added":null,"published":"2017-02-09"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2022-28391","kev_date_added":null,"published":"2022-04-03"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2017-16544","kev_date_added":null,"published":"2017-11-20"},{"cvss_score":8,"headline":"Memory corruption in n/a","id":"CVE-2018-1000517","kev_date_added":null,"published":"2018-06-26"},{"cvss_score":7.8,"headline":"Path traversal in n/a","id":"CVE-2023-39810","kev_date_added":null,"published":"2023-08-28"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-17","vendors":["n/a"]},"summary":"An attacker can cause a denial of service via malformed gzip data due to improper error handling in BusyBox decompression.","url":"https://insights.sbomify.com/CVE-2021-28831/"}