{"answers":{"affected":"It affects 6 products.","exploited":"There is no known exploitation of CVE-2019-11779 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-11779 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 19 Sep 2019. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-11779 and fix it if it is affected.\n\nWhat it is: CVE-2019-11779 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 19 Sep 2019. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-11779 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu Linux. 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-2019-11779/ (Markdown: https://insights.sbomify.com/CVE-2019-11779/index.md)","id":"CVE-2019-11779","markdown":"https://insights.sbomify.com/CVE-2019-11779/index.md","name":"CVE-2019-11779","record":{"aliases":["ALPINE-CVE-2019-11779","DEBIAN-CVE-2019-11779","DSA-4570-1","GHSA-wjwr-9f4q-q8h8","MGASA-2019-0345","openSUSE-SU-2019:2206-1","openSUSE-SU-2019:2247-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"MQTT broker","requires_auth":"low_privilege","summary":"A malicious MQTT client can cause a stack overflow and denial of service in Eclipse Mosquitto by sending a subscribe packet with excessive topic separators.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"eclipse","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"mosquitto","vendor":"eclipse"},{"product":"fedora","vendor":"fedoraproject"},{"product":"backports_sle","vendor":"opensuse"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"},{"id":"CWE-754","name":"Improper Check for Unusual or Exceptional Conditions"}],"description":"In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.","ecosystems":["SUSE:Package Hub 15 SP1","openSUSE:Leap 15.1"],"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":"Denial of service in Eclipse Mosquitto","id":"CVE-2019-11779","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","opensuse:backports_sle","opensuse:leap"],"type":"denial_of_service","year":"2019"},"n_packages":2,"n_references":10,"next":{"headline":"Missing authorization in Odoo Community","id":"CVE-2019-11780"},"packages":[{"ecosystem":"SUSE:Package Hub 15 SP1","fixed":["1.5.7-bp151.3.3.1"],"introduced":["0"],"last_affected":[],"package":"mosquitto","purl":"pkg:rpm/suse/mosquitto\u0026distro=SUSE%20Package%20Hub%2015%20SP1","source":"openSUSE-SU-2019:2247-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["1.5.7-lp151.2.3.1"],"introduced":["0"],"last_affected":[],"package":"mosquitto","purl":"pkg:rpm/opensuse/mosquitto\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2019:2206-1"}],"prev":{"headline":"Use after free in Eclipse Mosquitto","id":"CVE-2019-11778"},"products":["Eclipse Mosquitto"],"published":"2019-09-19","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":["The Eclipse Foundation"]},"summary":"A malicious MQTT client can cause a stack overflow and denial of service in Eclipse Mosquitto by sending a subscribe packet with excessive topic separators.","url":"https://insights.sbomify.com/CVE-2019-11779/"}