{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-3500 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-3500 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-3500 is a medium-severity denial of service vulnerability in Cisco ASR 5000 Series Software, published on 17 Aug 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-2020-3500 and fix it if it is affected.\n\nWhat it is: CVE-2020-3500 is a medium-severity denial of service vulnerability in Cisco ASR 5000 Series Software, published on 17 Aug 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-2020-3500 in the wild and no public exploit code.\n\nAffected product: Cisco ASR 5000 Series Software. 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-2020-3500/ (Markdown: https://insights.sbomify.com/CVE-2020-3500/index.md)","id":"CVE-2020-3500","markdown":"https://insights.sbomify.com/CVE-2020-3500/index.md","name":"CVE-2020-3500","record":{"aliases":["GHSA-5vvg-4mgq-x55f"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco StarOS","requires_auth":"none","summary":"Unauthenticated remote attackers can cause a denial of service on Cisco StarOS devices by sending crafted IPv6 packets, requiring vendor patches.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"staros","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-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"A vulnerability in the IPv6 implementation of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to an affected device with the goal of reaching the vulnerable section of the input buffer. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.","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 StarOS IPv6 Denial of Service Vulnerability","id":"CVE-2020-3500","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Webex Meetings Desktop App Information Disclosure Vulnerabilities","id":"CVE-2020-3501"},"packages":[],"prev":{"headline":"Cisco Firepower Management Center Software Denial of Service Vulnerability","id":"CVE-2020-3499"},"products":["Cisco ASR 5000 Series Software"],"published":"2020-08-17","related":[{"cvss_score":8.8,"headline":"Auth bypass in Cisco ASR 5000 Series Software","id":"CVE-2023-20046","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":8.6,"headline":"Cisco StarOS Denial of Service Vulnerability","id":"CVE-2019-1869","kev_date_added":null,"published":"2019-06-20"},{"cvss_score":8.6,"headline":"Denial of service in Cisco StarOS unknown","id":"CVE-2018-0369","kev_date_added":null,"published":"2018-07-16"},{"cvss_score":8.2,"headline":"Command injection in Cisco StarOS","id":"CVE-2017-6707","kev_date_added":null,"published":"2017-07-06"},{"cvss_score":8.1,"headline":"Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities","id":"CVE-2021-1539","kev_date_added":null,"published":"2021-06-04"},{"cvss_score":8.1,"headline":"Cisco ASR 5000 Series Software Authorization Bypass Vulnerabilities","id":"CVE-2021-1540","kev_date_added":null,"published":"2021-06-04"},{"cvss_score":7.5,"headline":"Denial of service in Cisco StarOS","id":"CVE-2018-0239","kev_date_added":null,"published":"2018-04-19"}],"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":"Unauthenticated remote attackers can cause a denial of service on Cisco StarOS devices by sending crafted IPv6 packets, requiring vendor patches.","url":"https://insights.sbomify.com/CVE-2020-3500/"}