{"answers":{"affected":"It affects 13 products.","exploited":"There is no known exploitation of CVE-2020-3255 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-3255 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-3255 is a high-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 6 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-3255 and fix it if it is affected.\n\nWhat it is: CVE-2020-3255 is a high-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 6 May 2020. 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-2020-3255 in the wild and no public exploit code.\n\nAffected product: Cisco Secure Firewall Threat Defense. 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-2020-3255/ (Markdown: https://insights.sbomify.com/CVE-2020-3255/index.md)","id":"CVE-2020-3255","markdown":"https://insights.sbomify.com/CVE-2020-3255/index.md","name":"CVE-2020-3255","record":{"aliases":["GHSA-fwmm-vfgg-4f84"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Cisco FTD software","requires_auth":"none","summary":"Remote attackers can cause denial of service on Cisco Firepower Threat Defense devices by flooding traffic matching block policies, exhausting memory.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"asa_5505_firmware","vendor":"cisco"},{"product":"asa_5510_firmware","vendor":"cisco"},{"product":"asa_5512-x_firmware","vendor":"cisco"},{"product":"asa_5515-x_firmware","vendor":"cisco"},{"product":"asa_5520_firmware","vendor":"cisco"},{"product":"asa_5525-x_firmware","vendor":"cisco"},{"product":"asa_5540_firmware","vendor":"cisco"},{"product":"asa_5545-x_firmware","vendor":"cisco"},{"product":"asa_5550_firmware","vendor":"cisco"},{"product":"asa_5555-x_firmware","vendor":"cisco"},{"product":"asa_5580_firmware","vendor":"cisco"},{"product":"asa_5585-x_firmware","vendor":"cisco"},{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a high rate of IPv4 or IPv6 traffic through an affected device. This traffic would need to match a configured block action in an access control policy. An exploit could allow the attacker to cause a memory exhaustion condition on the affected device, which would result in a DoS for traffic transiting the device, as well as sluggish performance of the management interface. Once the flood is stopped, performance should return to previous states.","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 Firepower Threat Defense Software Packet Flood Denial of Service Vulnerability","id":"CVE-2020-3255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_threat_defense","products":["cisco:secure_firewall_threat_defense"],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Hosted Collaboration Mediation Fulfillment XML External Expansion Vulnerability","id":"CVE-2020-3256"},"packages":[],"prev":{"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2020-3254"},"products":["Cisco Firepower Threat Defense Software"],"published":"2020-05-06","related":[{"cvss_score":8.6,"headline":"Cisco Firepower Threat Defense Software Generic Routing Encapsulation Tunnel IPv6 Denial of Service Vulnerability","id":"CVE-2020-3179","kev_date_added":null,"published":"2020-05-06"},{"cvss_score":8.6,"headline":"Cisco Firepower Threat Defense Software VPN System Logging Denial of Service Vulnerability","id":"CVE-2020-3189","kev_date_added":null,"published":"2020-05-06"},{"cvss_score":8.6,"headline":"Cisco Firepower 1000 Series SSL/TLS Denial of Service Vulnerability","id":"CVE-2020-3283","kev_date_added":null,"published":"2020-05-06"},{"cvss_score":5.3,"headline":"Cisco Firepower Threat Defense Software Management Access List Bypass Vulnerability","id":"CVE-2020-3186","kev_date_added":null,"published":"2020-05-06"},{"cvss_score":5.3,"headline":"Cisco Firepower Threat Defense Software Management Interface Denial of Service Vulnerability","id":"CVE-2020-3188","kev_date_added":null,"published":"2020-05-06"}],"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":"2024-11-15","vendors":["Cisco"]},"summary":"Remote attackers can cause denial of service on Cisco Firepower Threat Defense devices by flooding traffic matching block policies, exhausting memory.","url":"https://insights.sbomify.com/CVE-2020-3255/"}