{"answers":{"affected":"4 open source packages ship an affected version, including github.com/projectcalico/calico. It affects 3 products.","exploited":"There is no known exploitation of CVE-2023-41378 in the wild and no public exploit code.","fix":"Upgrade github.com/projectcalico/calico to 3.26.3 or later.","what":"CVE-2023-41378 is a high-severity denial of service vulnerability in Calico Typha, published on 6 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-41378 and fix it if it is affected.\n\nWhat it is: CVE-2023-41378 is a high-severity denial of service vulnerability in Calico Typha, published on 6 Nov 2023. 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-2023-41378 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/projectcalico/calico (Go): affected all versions up to 3.25.1; no fix listed\n- github.com/projectcalico/calico (Go): affected all versions up to 3.25.1; no fix listed\n- github.com/projectcalico/calico (Go): affected from 3.26.0; fixed in 3.26.3\n- github.com/projectcalico/calico (Go): affected from 3.26.0; fixed in 3.26.3\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-2023-41378/ (Markdown: https://insights.sbomify.com/CVE-2023-41378/index.md)","id":"CVE-2023-41378","markdown":"https://insights.sbomify.com/CVE-2023-41378/index.md","name":"CVE-2023-41378","record":{"aliases":["GHSA-5r5h-q934-cccp"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Calico Typha","requires_auth":"none","summary":"An attacker can cause a denial of service in Calico Typha by initiating an unclean TLS handshake that blocks the server's main loop indefinitely.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Tigera","cpe":[{"product":"calico_cloud","vendor":"tigera"},{"product":"calico_enterprise","vendor":"tigera"},{"product":"calico_os","vendor":"tigera"}],"cvss":{"score":7.5,"severity":"high","source":"cna","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-755","name":"Improper Handling of Exceptional Conditions"},{"id":"CWE-703","name":"Improper Check or Handling of Exceptional Conditions"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.","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":"Calico Typha hangs during unclean TLS handshake","id":"CVE-2023-41378","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":4,"n_references":3,"next":{"headline":"SQL injection in n/a","id":"CVE-2023-41387"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["3.25.1"],"package":"github.com/projectcalico/calico","purl":null,"source":"GHSA-5r5h-q934-cccp"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["3.25.1"],"package":"github.com/projectcalico/calico","purl":"pkg:golang/github.com/projectcalico/calico","source":"GHSA-5r5h-q934-cccp"},{"ecosystem":"Go","fixed":["3.26.3"],"introduced":["3.26.0"],"last_affected":[],"package":"github.com/projectcalico/calico","purl":null,"source":"GHSA-5r5h-q934-cccp"},{"ecosystem":"Go","fixed":["3.26.3"],"introduced":["3.26.0"],"last_affected":[],"package":"github.com/projectcalico/calico","purl":"pkg:golang/github.com/projectcalico/calico","source":"GHSA-5r5h-q934-cccp"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2023-41377"},"products":["Typha"],"published":"2023-11-06","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":"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-09-05","vendors":["Calico","Tigera"]},"summary":"An attacker can cause a denial of service in Calico Typha by initiating an unclean TLS handshake that blocks the server's main loop indefinitely.","url":"https://insights.sbomify.com/CVE-2023-41378/"}