{"answers":{"affected":"It affects 17 products.","exploited":"There is no known exploitation of CVE-2019-18805 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-18805 is a critical vulnerability in Broadcom Fabric Operating System, published on 7 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-2019-18805 and fix it if it is affected.\n\nWhat it is: CVE-2019-18805 is a critical vulnerability in Broadcom Fabric Operating System, published on 7 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-2019-18805 in the wild and no public exploit code.\n\nAffected product: Broadcom Fabric 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-2019-18805/ (Markdown: https://insights.sbomify.com/CVE-2019-18805/index.md)","id":"CVE-2019-18805","markdown":"https://insights.sbomify.com/CVE-2019-18805/index.md","name":"CVE-2019-18805","record":{"aliases":["DEBIAN-CVE-2019-18805","GHSA-wgj3-wxrf-qqg3","UBUNTU-CVE-2019-18805"],"analysis":{"component_type":"kernel","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A signed integer overflow in the Linux kernel TCP implementation allows local users to cause a denial of service by writing a large value to a specific proc file.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fabric_operating_system","vendor":"broadcom"},{"product":"linux_kernel","vendor":"linux"},{"product":"active_iq_unified_manager","vendor":"netapp"},{"product":"aff_a400_firmware","vendor":"netapp"},{"product":"aff_a700s_firmware","vendor":"netapp"},{"product":"data_availability_services","vendor":"netapp"},{"product":"e-series_santricity_os_controller","vendor":"netapp"},{"product":"fas8300_firmware","vendor":"netapp"},{"product":"fas8700_firmware","vendor":"netapp"},{"product":"h610s_firmware","vendor":"netapp"},{"product":"hci_compute_node","vendor":"netapp"},{"product":"hci_management_node","vendor":"netapp"},{"product":"hci_storage_node","vendor":"netapp"},{"product":"solidfire","vendor":"netapp"},{"product":"steelstore_cloud_integrated_storage","vendor":"netapp"},{"product":"leap","vendor":"opensuse"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An issue was discovered in net/ipv4/sysctl_net_ipv4.c in the Linux kernel before 5.0.11. There is a net/ipv4/tcp_input.c signed integer overflow in tcp_ack_update_rtt() when userspace writes a very large integer to /proc/sys/net/ipv4/tcp_min_rtt_wlen, leading to a denial of service or possibly unspecified other impact, aka CID-19fad20d15a6.","ecosystems":[],"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":"Integer overflow in n/a","id":"CVE-2019-18805","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"broadcom:fabric_operating_system","products":["broadcom:fabric_operating_system","linux:linux_kernel","netapp:active_iq_unified_manager","netapp:data_availability_services","netapp:e-series_santricity_os_controller","netapp:h610s_firmware","netapp:hci_compute_node","netapp:hci_management_node","netapp:solidfire","netapp:steelstore_cloud_integrated_storage","opensuse:leap","redhat:enterprise_linux"],"type":"integer_overflow","year":"2019"},"n_packages":0,"n_references":6,"next":{"headline":"Denial of service in n/a","id":"CVE-2019-18806"},"packages":[],"prev":{"headline":"Null dereference in n/a","id":"CVE-2019-18804"},"products":["n/a"],"published":"2019-11-07","related":[{"cvss_score":8.6,"headline":"Broadcom Brocade Fabric OS Code Injection","id":"CVE-2025-1976","kev_date_added":"2025-04-28","published":"2025-04-24"},{"cvss_score":8.3,"headline":"Linux Kernel Heap Out-of-Bounds Write","id":"CVE-2021-22555","kev_date_added":"2025-10-06","published":"2021-07-07"},{"cvss_score":9.8,"headline":"Command injection in Brocade Fabric OS","id":"CVE-2022-33186","kev_date_added":null,"published":"2022-12-08"},{"cvss_score":9.8,"headline":"Hardcoded credentials in Brocade Fabric OS","id":"CVE-2021-27797","kev_date_added":null,"published":"2022-02-21"},{"cvss_score":9.8,"headline":"Code injection in Brocade Fabric OS","id":"CVE-2020-15371","kev_date_added":null,"published":"2020-09-25"},{"cvss_score":9.8,"headline":"Memory corruption in Brocade Fabric OS","id":"CVE-2020-15373","kev_date_added":null,"published":"2020-09-25"},{"cvss_score":9.8,"headline":"Cross-site scripting in Brocade Fabric OS","id":"CVE-2020-15374","kev_date_added":null,"published":"2020-09-25"}],"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":"A signed integer overflow in the Linux kernel TCP implementation allows local users to cause a denial of service by writing a large value to a specific proc file.","url":"https://insights.sbomify.com/CVE-2019-18805/"}