{"answers":{"affected":"3 open source packages ship an affected version, including nicotine-plus. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-45848 in the wild and no public exploit code.","fix":"Upgrade nicotine-plus to 3.2.1 or later.","what":"CVE-2021-45848 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 15 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-45848 and fix it if it is affected.\n\nWhat it is: CVE-2021-45848 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 15 Mar 2022. 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-2021-45848 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- nicotine-plus (PyPI): affected from 3.0.3; fixed in 3.2.1\n- nicotine-plus (PyPI): affected from 3.0.3; fixed in 3.2.1\n- nicotine-plus (PyPI): affected from 3.0.3; fixed in 3.2.1\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-2021-45848/ (Markdown: https://insights.sbomify.com/CVE-2021-45848/index.md)","id":"CVE-2021-45848","markdown":"https://insights.sbomify.com/CVE-2021-45848/index.md","name":"CVE-2021-45848","record":{"aliases":["GHSA-p4v2-r99v-wjc2","PYSEC-2026-687"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Nicotine+ client","requires_auth":"none","summary":"A remote attacker can crash the Nicotine+ application by sending a file download request with a null character in the path.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"nicotine\\+","vendor":"nicotine-plus"}],"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-116","name":"Improper Encoding or Escaping of Output"}],"description":"Denial of service (DoS) vulnerability in Nicotine+ 3.0.3 and later allows a user with a modified Soulseek client to crash Nicotine+ by sending a file download request with a file path containing a null character.","ecosystems":["PyPI"],"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":"Nicotine+ DoS on Null Character in Download Request","id":"CVE-2021-45848","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"fedoraproject:fedora","products":["fedoraproject:fedora"],"type":"denial_of_service","year":"2021"},"n_packages":3,"n_references":3,"next":{"headline":"Server-Side Request Forgery in FUXA","id":"CVE-2021-45851"},"packages":[{"ecosystem":"PyPI","fixed":["3.2.1"],"introduced":["3.0.3"],"last_affected":[],"package":"nicotine-plus","purl":null,"source":"GHSA-p4v2-r99v-wjc2"},{"ecosystem":"PyPI","fixed":["3.2.1"],"introduced":["3.0.3"],"last_affected":[],"package":"nicotine-plus","purl":"pkg:pypi/nicotine-plus","source":"GHSA-p4v2-r99v-wjc2"},{"ecosystem":"PyPI","fixed":["3.2.1"],"introduced":["3.0.3"],"last_affected":[],"package":"nicotine-plus","purl":"pkg:pypi/nicotine-plus","source":"PYSEC-2026-687"}],"prev":{"headline":"Null dereference in n/a","id":"CVE-2021-45847"},"products":["n/a"],"published":"2022-03-15","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"A remote attacker can crash the Nicotine+ application by sending a file download request with a null character in the path.","url":"https://insights.sbomify.com/CVE-2021-45848/"}