{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4321 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2007-4321 is a medium-severity denial of service vulnerability in n/a, published on 14 Aug 2007. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2007-4321 and fix it if it is affected.\n\nWhat it is: CVE-2007-4321 is a medium-severity denial of service vulnerability in n/a, published on 14 Aug 2007. 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-2007-4321 exists.\n\nAffected product: n/a. 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-2007-4321/ (Markdown: https://insights.sbomify.com/CVE-2007-4321/index.md)","id":"CVE-2007-4321","markdown":"https://insights.sbomify.com/CVE-2007-4321/index.md","name":"CVE-2007-4321","record":{"aliases":["DEBIAN-CVE-2007-4321","DSA-1456-1","GHSA-5jfx-9p58-q8pj"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"fail2ban intrusion prevention","requires_auth":"none","summary":"Remote attackers can cause denial of service by injecting IP addresses into SSH logs, which fail2ban incorrectly parses into the hosts.deny file.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fail2ban","vendor":"fail2ban"}],"cvss":{"score":6.8,"severity":"medium","source":"nvd","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","version":"2.0"},"cwes":[],"description":"fail2ban 0.8 and earlier does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6302.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2007-07-28","github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[{"date":"2007-07-28","kind":"exploitdb","ref":"30430","stars":null,"title":"Fail2ban 0.8 - Remote Denial of Service"}],"tier":"weaponised"},"has_fix":true,"headline":"Denial of service in n/a","id":"CVE-2007-4321","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2007"},"n_packages":0,"n_references":8,"next":{"headline":"Denial of service in n/a","id":"CVE-2007-4322"},"packages":[],"prev":{"headline":"Code injection in n/a","id":"CVE-2007-4320"},"products":["n/a"],"published":"2007-08-14","related":[{"cvss_score":7.5,"headline":"Command injection in n/a","id":"CVE-2012-5642","kev_date_added":null,"published":"2012-12-31"},{"cvss_score":6.1,"headline":"Possible RCE vulnerability in mailing action using mailutils (mail-whois)","id":"CVE-2021-32749","kev_date_added":null,"published":"2021-07-16"},{"cvss_score":5,"headline":"Denial of service in n/a","id":"CVE-2013-7176","kev_date_added":null,"published":"2014-02-01"},{"cvss_score":5,"headline":"Denial of service in n/a","id":"CVE-2013-7177","kev_date_added":null,"published":"2014-02-01"},{"cvss_score":5,"headline":"Denial of service in n/a","id":"CVE-2013-2178","kev_date_added":null,"published":"2013-08-28"},{"cvss_score":5,"headline":"Denial of service in n/a","id":"CVE-2006-6302","kev_date_added":null,"published":"2006-12-06"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-07","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service by injecting IP addresses into SSH logs, which fail2ban incorrectly parses into the hosts.deny file.","url":"https://insights.sbomify.com/CVE-2007-4321/"}