{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-17210 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-17210 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-17210 is a high-severity vulnerability in n/a, published on 4 Nov 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-2019-17210 and fix it if it is affected.\n\nWhat it is: CVE-2019-17210 is a high-severity vulnerability in n/a, published on 4 Nov 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-2019-17210 in the wild and no public exploit code.\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-2019-17210/ (Markdown: https://insights.sbomify.com/CVE-2019-17210/index.md)","id":"CVE-2019-17210","markdown":"https://insights.sbomify.com/CVE-2019-17210/index.md","name":"CVE-2019-17210","record":{"aliases":["GHSA-xp54-622x-6x77"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Arm Mbed OS","requires_auth":"none","summary":"An attacker can cause a denial of service in Arm Mbed OS by manipulating MQTT packet length fields to trigger a null pointer dereference.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"mbed-mqtt","vendor":"arm"},{"product":"mbed-os","vendor":"arm"}],"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":"A denial-of-service issue was discovered in the MQTT library in Arm Mbed OS 2017-11-02. The function readMQTTLenString() is called by the function MQTTDeserialize_publish() to get the length and content of the MQTT topic name. In the function readMQTTLenString(), mqttstring-\u003elenstring.len is a part of user input, which can be manipulated. An attacker can simply change it to a larger value to invalidate the if statement so that the statements inside the if statement are skipped, letting the value of mqttstring-\u003elenstring.data default to zero. Later, curn is accessed, which points to mqttstring-\u003elenstring.data. On an Arm Cortex-M chip, the value at address 0x0 is actually the initialization value for the MSP register. It is highly dependent on the actual firmware. Therefore, the behavior of the program is unpredictable from this time on.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Null dereference in n/a","id":"CVE-2019-17210","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Integer overflow in n/a","id":"CVE-2019-17211"},"packages":[],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2019-17207"},"products":["n/a"],"published":"2019-11-04","related":[],"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":"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":"An attacker can cause a denial of service in Arm Mbed OS by manipulating MQTT packet length fields to trigger a null pointer dereference.","url":"https://insights.sbomify.com/CVE-2019-17210/"}