{"answers":{"affected":"3 open source packages ship an affected version, including github.com/mastercactapus/proxyprotocol. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-14243 in the wild and no public exploit code.","fix":"Upgrade github.com/mastercactapus/proxyprotocol to 0.0.2 or later.","what":"CVE-2019-14243 is a high-severity denial of service vulnerability in n/a, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-14243 and fix it if it is affected.\n\nWhat it is: CVE-2019-14243 is a high-severity denial of service vulnerability in n/a, published on 23 Jul 2019. 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-2019-14243 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/mastercactapus/proxyprotocol (Go): affected all versions; fixed in 0.0.2\n- github.com/mastercactapus/proxyprotocol (Go): affected all versions; fixed in 0.0.2\n- github.com/mastercactapus/proxyprotocol (Go): affected all versions; fixed in 0.0.2\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-2019-14243/ (Markdown: https://insights.sbomify.com/CVE-2019-14243/index.md)","id":"CVE-2019-14243","markdown":"https://insights.sbomify.com/CVE-2019-14243/index.md","name":"CVE-2019-14243","record":{"aliases":["GHSA-85c5-ccm8-vr96","GO-2023-1923"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Caddy proxy protocol plugin","requires_auth":"none","summary":"Remote attackers can crash the Caddy webserver by sending a crafted HAProxy PROXY v2 request with truncated address data.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"proxyprotocol","vendor":"haproxy"}],"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-20","name":"Improper Input Validation"}],"description":"headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webserver panic and daemon crash) via a crafted HAProxy PROXY v2 request with truncated source/destination address data.","ecosystems":["Go"],"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":"mastercactapus proxyprotocol vulnerable to denial of service","id":"CVE-2019-14243","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2019"},"n_packages":3,"n_references":6,"next":{"headline":"Missing authorization in n/a","id":"CVE-2019-14245"},"packages":[{"ecosystem":"Go","fixed":["0.0.2"],"introduced":["0"],"last_affected":[],"package":"github.com/mastercactapus/proxyprotocol","purl":null,"source":"GHSA-85c5-ccm8-vr96"},{"ecosystem":"Go","fixed":["0.0.2"],"introduced":["0"],"last_affected":[],"package":"github.com/mastercactapus/proxyprotocol","purl":"pkg:golang/github.com/mastercactapus/proxyprotocol","source":"GHSA-85c5-ccm8-vr96"},{"ecosystem":"Go","fixed":["0.0.2"],"introduced":["0"],"last_affected":[],"package":"github.com/mastercactapus/proxyprotocol","purl":"pkg:golang/github.com/mastercactapus/proxyprotocol","source":"GO-2023-1923"}],"prev":{"headline":"Code injection in n/a","id":"CVE-2019-14242"},"products":["n/a"],"published":"2019-07-23","related":[],"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":"Go Vulnerability Database","prefix":"GO"},{"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":"2024-08-05","vendors":["n/a"]},"summary":"Remote attackers can crash the Caddy webserver by sending a crafted HAProxy PROXY v2 request with truncated address data.","url":"https://insights.sbomify.com/CVE-2019-14243/"}