{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-20083 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-20083 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-20083 is a high-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 1 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-20083 and fix it if it is affected.\n\nWhat it is: CVE-2023-20083 is a high-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 1 Nov 2023. 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-2023-20083 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-2023-20083/ (Markdown: https://insights.sbomify.com/CVE-2023-20083/index.md)","id":"CVE-2023-20083","markdown":"https://insights.sbomify.com/CVE-2023-20083/index.md","name":"CVE-2023-20083","record":{"aliases":["GHSA-f2q5-h9mf-9537"],"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 a denial of service by sending crafted ICMPv6 packets to Cisco FTD devices using the Snort 2 engine.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.","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":"Denial of service in Cisco Firepower Threat Defense Software","id":"CVE-2023-20083","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":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Race condition in Cisco Secure Endpoint","id":"CVE-2023-20084"},"packages":[],"prev":{"headline":"Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches Secure Boot Bypass Vulnerability","id":"CVE-2023-20082"},"products":["Cisco Firepower Threat Defense Software"],"published":"2023-11-01","related":[{"cvss_score":9.3,"headline":"Hardcoded credentials in Cisco Firepower Threat Defense Software","id":"CVE-2024-20412","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Memory corruption in Cisco Firepower Threat Defense Software","id":"CVE-2024-20330","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability","id":"CVE-2024-20339","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Cisco Firepower Threat Defense Software Snort Firewall Denial of Service Vulnerability","id":"CVE-2024-20351","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Firepower Threat Defense Software","id":"CVE-2023-20244","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":8.6,"headline":"Memory corruption in Cisco Firepower Threat Defense Software","id":"CVE-2022-20946","kev_date_added":null,"published":"2022-11-10"}],"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":"2024-08-02","vendors":["Cisco"]},"summary":"Remote attackers can cause a denial of service by sending crafted ICMPv6 packets to Cisco FTD devices using the Snort 2 engine.","url":"https://insights.sbomify.com/CVE-2023-20083/"}