{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2019-1858 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-1858 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-1858 is a high-severity denial of service vulnerability in Cisco Firepower Extensible Operating System, published on 16 May 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-2019-1858 and fix it if it is affected.\n\nWhat it is: CVE-2019-1858 is a high-severity denial of service vulnerability in Cisco Firepower Extensible Operating System, published on 16 May 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-2019-1858 in the wild and no public exploit code.\n\nAffected product: Cisco Firepower Extensible Operating System. 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-2019-1858/ (Markdown: https://insights.sbomify.com/CVE-2019-1858/index.md)","id":"CVE-2019-1858","markdown":"https://insights.sbomify.com/CVE-2019-1858/index.md","name":"CVE-2019-1858","record":{"aliases":["GHSA-h4rm-7mpv-29cj"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco FXOS/NX-OS","requires_auth":"none","summary":"Remote unauthenticated attackers can cause a denial of service by sending crafted SNMP packets that trigger a memory leak in Cisco FXOS and NX-OS devices.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"firepower_extensible_operating_system","vendor":"cisco"},{"product":"fx-os","vendor":"cisco"},{"product":"nx-os","vendor":"cisco"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the SNMP application to leak system memory, which could cause an affected device to restart unexpectedly. The vulnerability is due to improper error handling when processing inbound SNMP packets. An attacker could exploit this vulnerability by sending multiple crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the SNMP application to leak system memory because of an improperly handled error condition during packet processing. Over time, this memory leak could cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.","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":"Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability","id":"CVE-2019-1858","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:firepower_extensible_operating_system","products":["cisco:firepower_extensible_operating_system","cisco:nx-os"],"type":"denial_of_service","year":"2019"},"n_packages":0,"n_references":2,"next":{"headline":"Cisco Small Business Switches Secure Shell Certificate Authentication Bypass Vulnerability","id":"CVE-2019-1859"},"packages":[],"prev":{"headline":"Cisco HyperFlex HX-Series Web-Based Management Interface Cross-Site Request Forgery Vulnerability","id":"CVE-2019-1857"},"products":["Cisco Firepower Extensible Operating System (FXOS)"],"published":"2019-05-16","related":[{"cvss_score":9.8,"headline":"Information disclosure in Cisco FXOS and NX-OS unknown","id":"CVE-2018-0310","kev_date_added":null,"published":"2018-06-21"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2015-6435","kev_date_added":null,"published":"2016-01-22"},{"cvss_score":8.8,"headline":"Memory corruption in Cisco NX-OS Software","id":"CVE-2021-1368","kev_date_added":null,"published":"2021-02-24"},{"cvss_score":8.8,"headline":"Cisco FXOS Software Firepower Chassis Manager Cross-Site Request Forgery Vulnerability","id":"CVE-2020-3456","kev_date_added":null,"published":"2020-10-21"},{"cvss_score":8.8,"headline":"Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability","id":"CVE-2020-3172","kev_date_added":null,"published":"2020-02-26"},{"cvss_score":8.8,"headline":"Cisco FXOS and NX-OS Software Link Layer Discovery Protocol Denial of Service Vulnerability","id":"CVE-2018-0395","kev_date_added":null,"published":"2018-10-17"},{"cvss_score":8.8,"headline":"Memory corruption in Cisco FXOS and NX-OS unknown","id":"CVE-2018-0303","kev_date_added":null,"published":"2018-06-21"}],"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-19","vendors":["Cisco"]},"summary":"Remote unauthenticated attackers can cause a denial of service by sending crafted SNMP packets that trigger a memory leak in Cisco FXOS and NX-OS devices.","url":"https://insights.sbomify.com/CVE-2019-1858/"}