{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2024-21618 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-21618 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-21618 is a high-severity memory corruption vulnerability in Juniper Junos, published on 12 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-21618 and fix it if it is affected.\n\nWhat it is: CVE-2024-21618 is a high-severity memory corruption vulnerability in Juniper Junos, published on 12 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-21618 in the wild and no public exploit code.\n\nAffected product: Juniper Junos. 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-2024-21618/ (Markdown: https://insights.sbomify.com/CVE-2024-21618/index.md)","id":"CVE-2024-21618","markdown":"https://insights.sbomify.com/CVE-2024-21618/index.md","name":"CVE-2024-21618","record":{"aliases":["GHSA-6rj9-5jww-q88j"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Juniper Junos OS","requires_auth":"none","summary":"An adjacent attacker can cause a denial of service by sending malformed LLDP packets to Junos OS devices with LLDP enabled.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"junos","vendor":"juniper"},{"product":"junos_os_evolved","vendor":"juniper"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"},{"id":"CWE-788","name":"Access of Memory Location After End of Buffer"}],"description":"An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved platforms, when LLDP is enabled on a specific interface, and a malformed LLDP packet is received, l2cpd crashes and restarts. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.\n\nThis issue affects:\n\nJunos OS:\n  *  from 21.4 before 21.4R3-S4, \n\n  *  from 22.1 before 22.1R3-S4, \n\n  *  from 22.2 before 22.2R3-S2, \n\n  *  from 22.3 before 22.3R2-S2, 22.3R3-S1, \n\n  *  from 22.4 before 22.4R3, \n\n  *  from 23.2 before 23.2R2.\n\n Junos OS Evolved:\n  *  from 21.4-EVO before 21.4R3-S5-EVO, \n\n  *  from 22.1-EVO before 22.1R3-S4-EVO, \n\n  *  from 22.2-EVO before 22.2R3-S2-EVO, \n\n  *  from 22.3-EVO before 22.3R2-S2-EVO, 22.3R3-S1-EVO, \n\n  *  from 22.4-EVO before 22.4R3-EVO, \n\n  *  from 23.2-EVO before 23.2R2-EVO.\n\nThis issue does not affect:\n  *  Junos OS versions prior to 21.4R1;\n\n  *  Junos OS Evolved versions prior to 21.4R1-EVO.","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":"Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is received, l2cpd crashes","id":"CVE-2024-21618","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"juniper:junos","products":["juniper:junos","juniper:junos_os_evolved"],"type":"memory_corruption","year":"2024"},"n_packages":0,"n_references":2,"next":{"headline":"Junos OS: SRX Series and EX Series: J-Web - unauthenticated access to temporary files containing sensitive information","id":"CVE-2024-21619"},"packages":[],"prev":{"headline":"Junos OS: BGP flap on NSR-enabled devices causes memory leak","id":"CVE-2024-21617"},"products":["Junos OS","Junos OS Evolved"],"published":"2024-04-12","related":[{"cvss_score":9.8,"headline":"Juniper Junos OS EX Series and SRX Series PHP External Variable Modification","id":"CVE-2023-36845","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":8.8,"headline":"Juniper Junos OS Path Traversal","id":"CVE-2020-1631","kev_date_added":"2022-03-25","published":"2020-05-04"},{"cvss_score":6.7,"headline":"Juniper Junos OS Improper Isolation or Compartmentalization","id":"CVE-2025-21590","kev_date_added":"2025-03-13","published":"2025-03-12"},{"cvss_score":5.3,"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36851","kev_date_added":"2023-11-13","published":"2023-09-26"},{"cvss_score":5.3,"headline":"Juniper Junos OS EX Series PHP External Variable Modification","id":"CVE-2023-36844","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":5.3,"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36846","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":5.3,"headline":"Juniper Junos OS EX Series Missing Authentication for Critical Function","id":"CVE-2023-36847","kev_date_added":"2023-11-13","published":"2023-08-17"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-08-01","vendors":["Juniper Networks"]},"summary":"An adjacent attacker can cause a denial of service by sending malformed LLDP packets to Junos OS devices with LLDP enabled.","url":"https://insights.sbomify.com/CVE-2024-21618/"}