{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2017-12311 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2017-12311 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-12311 is a medium-severity denial of service vulnerability in Cisco Meeting Server, published on 16 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-12311 and fix it if it is affected.\n\nWhat it is: CVE-2017-12311 is a medium-severity denial of service vulnerability in Cisco Meeting Server, published on 16 Nov 2017. 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-2017-12311 in the wild and no public exploit code.\n\nAffected product: Cisco Meeting Server. 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-2017-12311/ (Markdown: https://insights.sbomify.com/CVE-2017-12311/index.md)","id":"CVE-2017-12311","markdown":"https://insights.sbomify.com/CVE-2017-12311/index.md","name":"CVE-2017-12311","record":{"aliases":["GHSA-f723-86qq-j5cv"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Meeting Server","requires_auth":"none","summary":"An unauthenticated remote attacker can cause a denial of service by sending a malformed H.264 frame to Cisco Meeting Server.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"meeting_server","vendor":"cisco"}],"cvss":{"score":5.8,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"},{"id":"CWE-399","name":null}],"description":"A vulnerability in the H.264 decoder function of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a Cisco Meeting Server media process to restart unexpectedly when it receives an illegal H.264 frame. The vulnerability is triggered by an H.264 frame that has an invalid picture parameter set (PPS) value. An attacker could exploit this vulnerability by sending a malformed H.264 frame to the targeted device. An exploit could allow the attacker to cause a denial of service (DoS) condition because the media process could restart. The media session should be re-established within a few seconds, during which there could be a brief interruption in service. Cisco Bug IDs: CSCvg12559.","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 Meeting Server","id":"CVE-2017-12311","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2017"},"n_packages":0,"n_references":3,"next":{"headline":"Path traversal in Cisco Immunet Antimalware Installer","id":"CVE-2017-12312"},"packages":[],"prev":{"headline":"Information disclosure in Cisco Spark Hybrid Calendar Service","id":"CVE-2017-12310"},"products":["Cisco Meeting Server"],"published":"2017-11-16","related":[{"cvss_score":9.8,"headline":"Memory corruption in Cisco Meeting Server before 2.0.3 and Acano Server before 1.9.5","id":"CVE-2016-6448","kev_date_added":null,"published":"2016-11-03"},{"cvss_score":9.1,"headline":"Misconfiguration in Cisco Meeting Server","id":"CVE-2017-12249","kev_date_added":null,"published":"2017-09-13"},{"cvss_score":9.1,"headline":"Auth bypass in Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6","id":"CVE-2016-6445","kev_date_added":null,"published":"2016-10-27"},{"cvss_score":8.8,"headline":"Cisco Meeting Server Cross-Site Request Forgery Vulnerability","id":"CVE-2018-0439","kev_date_added":null,"published":"2018-10-05"},{"cvss_score":8.8,"headline":"Cross-site request forgery in Cisco Meeting Server 1.8, 1.9, 2.0","id":"CVE-2016-6444","kev_date_added":null,"published":"2016-10-27"},{"cvss_score":8.1,"headline":"Misconfiguration in Cisco Meeting Server","id":"CVE-2018-0262","kev_date_added":null,"published":"2018-05-02"},{"cvss_score":8.1,"headline":"Information disclosure in Cisco Meeting Server","id":"CVE-2017-3837","kev_date_added":null,"published":"2017-02-22"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"An unauthenticated remote attacker can cause a denial of service by sending a malformed H.264 frame to Cisco Meeting Server.","url":"https://insights.sbomify.com/CVE-2017-12311/"}