{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-25684 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-25684 is a high-severity denial of service vulnerability in Canonical apport, published on 11 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-25684 and fix it if it is affected.\n\nWhat it is: CVE-2021-25684 is a high-severity denial of service vulnerability in Canonical apport, published on 11 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-25684 in the wild and no public exploit code.\n\nAffected product: Canonical apport. 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-2021-25684/ (Markdown: https://insights.sbomify.com/CVE-2021-25684/index.md)","id":"CVE-2021-25684","markdown":"https://insights.sbomify.com/CVE-2021-25684/index.md","name":"CVE-2021-25684","record":{"aliases":["GHSA-5wpx-42qp-2c7p","UBUNTU-CVE-2021-25684"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Ubuntu apport","requires_auth":"low_privilege","summary":"An attacker can cause the apport crash reporting tool to hang by directing it to read from a FIFO, leading to a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"apport","vendor":"canonical"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"It was discovered that apport in data/apport did not properly open a report file to prevent hanging reads on a FIFO.","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":"apport can be stalled by reading a FIFO","id":"CVE-2021-25684","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in - PCoIP Standard Agent for Windows - PCoIP Standard Agent for Linux - PCoIP Graphics Agent for Windows - PCoIP Graphics Agent for Linux","id":"CVE-2021-25688"},"packages":[],"prev":{"headline":"apport improperly parses /proc/pid/stat","id":"CVE-2021-25683"},"products":["apport"],"published":"2021-06-11","related":[{"cvss_score":8.8,"headline":"apport improperly parses /proc/pid/status","id":"CVE-2021-25682","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":8.8,"headline":"apport improperly parses /proc/pid/stat","id":"CVE-2021-25683","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":7.8,"headline":"Race condition in Apport","id":"CVE-2021-3899","kev_date_added":null,"published":"2024-06-03"},{"cvss_score":7.8,"headline":"Other in Apport","id":"CVE-2022-1242","kev_date_added":null,"published":"2024-06-03"},{"cvss_score":7.7,"headline":"local privilege escalation in apport-cli","id":"CVE-2023-1326","kev_date_added":null,"published":"2023-04-13"},{"cvss_score":7.5,"headline":"Denial of service in Apport","id":"CVE-2022-28653","kev_date_added":null,"published":"2025-01-31"}],"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":"2025-11-03","vendors":["Canonical"]},"summary":"An attacker can cause the apport crash reporting tool to hang by directing it to read from a FIFO, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2021-25684/"}