{"answers":{"affected":"7 open source packages ship an affected version, including neutron. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38598 in the wild and no public exploit code.","fix":"Upgrade neutron to a fixed version for your release line: 16.4.1, 17.1.3 or 18.1.0.","what":"CVE-2021-38598 is a critical vulnerability in n/a, published on 23 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-38598 and fix it if it is affected.\n\nWhat it is: CVE-2021-38598 is a critical vulnerability in n/a, published on 23 Aug 2021. 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-2021-38598 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- neutron (PyPI): affected all versions; no fix listed\n- neutron (PyPI): affected all versions; no fix listed\n- neutron (PyPI): affected all versions; fixed in 16.4.1, 17.1.3, 18.1.0\n- neutron (PyPI): affected all versions; fixed in 16.4.1\n- neutron (PyPI): affected all versions; fixed in 16.4.1\n- neutron (PyPI): affected from 17.0.0; fixed in 17.1.3\n- neutron (PyPI): affected from 17.0.0; fixed in 17.1.3\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-2021-38598/ (Markdown: https://insights.sbomify.com/CVE-2021-38598/index.md)","id":"CVE-2021-38598","markdown":"https://insights.sbomify.com/CVE-2021-38598/index.md","name":"CVE-2021-38598","record":{"aliases":["DEBIAN-CVE-2021-38598","GHSA-hvm4-mc7m-22w4","PYSEC-2021-360","UBUNTU-CVE-2021-38598"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"OpenStack Neutron","requires_auth":"none","summary":"Attackers can impersonate hardware addresses in OpenStack Neutron using linuxbridge with ebtables-nft, causing denial of service or traffic interception.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"neutron","vendor":"openstack"}],"cvss":{"score":9.1,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtables-nft is used on a Netfilter-based platform. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the hardware addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations.","ecosystems":["PyPI"],"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":"OpenStack Neutron vulnerable to hardware address impersonation","id":"CVE-2021-38598","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"other","year":"2021"},"n_packages":7,"n_references":1,"next":{"headline":"Improper use of cryptographic key in wal-g","id":"CVE-2021-38599"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"neutron","purl":null,"source":"GHSA-hvm4-mc7m-22w4"},{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"neutron","purl":"pkg:pypi/neutron","source":"GHSA-hvm4-mc7m-22w4"},{"ecosystem":"PyPI","fixed":["16.4.1","17.1.3","18.1.0"],"introduced":["0","17.0.0","18.0.0"],"last_affected":[],"package":"neutron","purl":"pkg:pypi/neutron","source":"PYSEC-2021-360"},{"ecosystem":"PyPI","fixed":["16.4.1"],"introduced":["0"],"last_affected":[],"package":"neutron","purl":null,"source":"GHSA-hvm4-mc7m-22w4"},{"ecosystem":"PyPI","fixed":["16.4.1"],"introduced":["0"],"last_affected":[],"package":"neutron","purl":"pkg:pypi/neutron","source":"GHSA-hvm4-mc7m-22w4"},{"ecosystem":"PyPI","fixed":["17.1.3"],"introduced":["17.0.0"],"last_affected":[],"package":"neutron","purl":null,"source":"GHSA-hvm4-mc7m-22w4"},{"ecosystem":"PyPI","fixed":["17.1.3"],"introduced":["17.0.0"],"last_affected":[],"package":"neutron","purl":"pkg:pypi/neutron","source":"GHSA-hvm4-mc7m-22w4"}],"prev":{"headline":"Security feature bypass in n/a","id":"CVE-2021-38597"},"products":["n/a"],"published":"2021-08-23","related":[{"cvss_score":9.1,"headline":"OpenStack Neutron allows remote attackers to bypass an intended ICMPv6-spoofing protection mechanism","id":"CVE-2015-8914","kev_date_added":null,"published":"2016-06-17"},{"cvss_score":8.2,"headline":"OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism","id":"CVE-2016-5362","kev_date_added":null,"published":"2016-06-17"},{"cvss_score":8.2,"headline":"OpenStack Neutron Intended MAC-spoofing protection mechanism bypass","id":"CVE-2016-5363","kev_date_added":null,"published":"2016-06-17"},{"cvss_score":7.6,"headline":"Privilege escalation in n/a","id":"CVE-2014-3632","kev_date_added":null,"published":"2014-10-07"},{"cvss_score":7.1,"headline":"Openstack Neutron has Insufficient Verification of IPv6 addresses","id":"CVE-2021-20267","kev_date_added":null,"published":"2021-05-28"},{"cvss_score":6.5,"headline":"openstack-neutron uncontrolled resource consumption flaw","id":"CVE-2022-3277","kev_date_added":null,"published":"2023-03-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":["n/a"]},"summary":"Attackers can impersonate hardware addresses in OpenStack Neutron using linuxbridge with ebtables-nft, causing denial of service or traffic interception.","url":"https://insights.sbomify.com/CVE-2021-38598/"}