{"answers":{"affected":"1 open source package ship an affected version, including apache. It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-41524 in the wild and no public exploit code.","fix":"Upgrade apache to 2.4.50 or later.","what":"CVE-2021-41524 is a high-severity vulnerability in Apache Http Server, published on 5 Oct 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-2021-41524 and fix it if it is affected.\n\nWhat it is: CVE-2021-41524 is a high-severity vulnerability in Apache Http Server, published on 5 Oct 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-2021-41524 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- apache (Bitnami): affected from 2.4.49; fixed in 2.4.50\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-2021-41524/ (Markdown: https://insights.sbomify.com/CVE-2021-41524/index.md)","id":"CVE-2021-41524","markdown":"https://insights.sbomify.com/CVE-2021-41524/index.md","name":"CVE-2021-41524","record":{"aliases":["ALPINE-CVE-2021-41524","BIT-apache-2021-41524","CLEANSTART-2026-EB87524","DEBIAN-CVE-2021-41524","GHSA-f29c-hjcq-ww2f"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Apache HTTP Server","requires_auth":"none","summary":"An external attacker can cause a denial of service in Apache HTTP Server by sending a specially crafted HTTP/2 request that triggers a null pointer dereference.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"http_server","vendor":"apache"},{"product":"fedora","vendor":"fedoraproject"},{"product":"cloud_backup","vendor":"netapp"},{"product":"instantis_enterprisetrack","vendor":"oracle"}],"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-476","name":"NULL Pointer Dereference"}],"description":"While fuzzing the 2.4.49 httpd, a new null pointer dereference was detected during HTTP/2 request processing, allowing an external source to DoS the server. This requires a specially crafted request. The vulnerability was recently introduced in version 2.4.49. No exploit is known to the project.","ecosystems":["Bitnami"],"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":"null pointer dereference in h2 fuzzing","id":"CVE-2021-41524","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:http_server","products":["apache:http_server","fedoraproject:fedora","netapp:cloud_backup","oracle:instantis_enterprisetrack"],"type":"null_dereference","year":"2021"},"n_packages":1,"n_references":8,"next":{"headline":"Missing authorization in n/a","id":"CVE-2021-41525"},"packages":[{"ecosystem":"Bitnami","fixed":["2.4.50"],"introduced":["2.4.49"],"last_affected":[],"package":"apache","purl":"pkg:bitnami/apache","source":"BIT-apache-2021-41524"}],"prev":{"headline":"SQL injection in n/a","id":"CVE-2021-41511"},"products":["Apache HTTP Server"],"published":"2021-10-05","related":[{"cvss_score":9.8,"headline":"Apache HTTP Server Path Traversal","id":"CVE-2021-42013","kev_date_added":"2021-11-03","published":"2021-10-07"},{"cvss_score":9.1,"headline":"Apache HTTP Server Improper Escaping of Output","id":"CVE-2024-38475","kev_date_added":"2025-05-01","published":"2024-07-01"},{"cvss_score":9,"headline":"Apache HTTP Server-Side Request Forgery (SSRF)","id":"CVE-2021-40438","kev_date_added":"2021-12-01","published":"2021-09-16"},{"cvss_score":7.8,"headline":"Apache HTTP Server Privilege Escalation","id":"CVE-2019-0211","kev_date_added":"2021-11-03","published":"2019-04-08"},{"cvss_score":7.5,"headline":"Apache HTTP Server Path Traversal","id":"CVE-2021-41773","kev_date_added":"2021-11-03","published":"2021-10-05"},{"cvss_score":10,"headline":"Use after free in n/a","id":"CVE-2010-0425","kev_date_added":null,"published":"2010-03-05"},{"cvss_score":10,"headline":"Auth bypass in n/a","id":"CVE-2005-2700","kev_date_added":null,"published":"2005-09-06"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"2024-08-04","vendors":["Apache Software Foundation"]},"summary":"An external attacker can cause a denial of service in Apache HTTP Server by sending a specially crafted HTTP/2 request that triggers a null pointer dereference.","url":"https://insights.sbomify.com/CVE-2021-41524/"}