{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-3555 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-3555 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-3555 is a medium-severity denial of service vulnerability in Cisco Adaptive Security Appliance, published on 21 Oct 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-2020-3555 and fix it if it is affected.\n\nWhat it is: CVE-2020-3555 is a medium-severity denial of service vulnerability in Cisco Adaptive Security Appliance, published on 21 Oct 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-2020-3555 in the wild and no public exploit code.\n\nAffected product: Cisco Adaptive Security Appliance. 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-2020-3555/ (Markdown: https://insights.sbomify.com/CVE-2020-3555/index.md)","id":"CVE-2020-3555","markdown":"https://insights.sbomify.com/CVE-2020-3555/index.md","name":"CVE-2020-3555","record":{"aliases":["GHSA-r7x6-g4f2-fq99"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco ASA/FTD firewall","requires_auth":"none","summary":"Remote attackers can crash Cisco ASA and FTD devices by sending high-rate crafted SIP traffic, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"adaptive_security_appliance","vendor":"cisco"},{"product":"adaptive_security_appliance_software","vendor":"cisco"},{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"A vulnerability in the SIP inspection process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a watchdog timeout and crash during the cleanup of threads that are associated with a SIP connection that is being deleted from the connection list. An attacker could exploit this vulnerability by sending a high rate of crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a watchdog timeout and crash, resulting in a crash and reload of the affected device.","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 Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Denial of Service Vulnerability","id":"CVE-2020-3555","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:adaptive_security_appliance","products":["cisco:adaptive_security_appliance","cisco:adaptive_security_appliance_software","cisco:secure_firewall_threat_defense"],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco AnyConnect Secure Mobility Client Arbitrary Code Execution Vulnerability","id":"CVE-2020-3556"},"packages":[],"prev":{"headline":"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Denial of Service Vulnerability","id":"CVE-2020-3554"},"products":["Cisco Adaptive Security Appliance (ASA) Software"],"published":"2020-10-21","related":[{"cvss_score":8.6,"headline":"Denial of service in Cisco Adaptive Security Appliance Software","id":"CVE-2021-1573","kev_date_added":null,"published":"2022-01-11"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2021-34793","kev_date_added":null,"published":"2021-10-27"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2021-40117","kev_date_added":null,"published":"2021-10-27"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2021-40118","kev_date_added":null,"published":"2021-10-27"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2020-3304","kev_date_added":null,"published":"2020-10-21"},{"cvss_score":8.6,"headline":"File upload in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2020-3436","kev_date_added":null,"published":"2020-10-21"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2020-3528","kev_date_added":null,"published":"2020-10-21"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-13","vendors":["Cisco"]},"summary":"Remote attackers can crash Cisco ASA and FTD devices by sending high-rate crafted SIP traffic, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2020-3555/"}