{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-4355 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-4355 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-4355 is a medium-severity denial of service vulnerability in Ibm Db2, published on 1 Jul 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-2020-4355 and fix it if it is affected.\n\nWhat it is: CVE-2020-4355 is a medium-severity denial of service vulnerability in Ibm Db2, published on 1 Jul 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-2020-4355 in the wild and no public exploit code.\n\nAffected product: Ibm Db2. 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-2020-4355/ (Markdown: https://insights.sbomify.com/CVE-2020-4355/index.md)","id":"CVE-2020-4355","markdown":"https://insights.sbomify.com/CVE-2020-4355/index.md","name":"CVE-2020-4355","record":{"aliases":["GHSA-6qmh-qf4p-53f5"],"analysis":{"component_type":"database","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"IBM DB2 database","requires_auth":"none","summary":"Remote attackers can cause denial of service in IBM DB2 by sending crafted SSL renegotiation requests, increasing system resource usage.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"db2","vendor":"ibm"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/I:N/AV:N/S:U/C:N/UI:N/PR:N/A:L/AC:L/RC:C/RL:O/E:U","version":"3.0"},"cwes":[],"description":"IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. IBM X-Force ID: 178507.","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 DB2 for Linux- UNIX and Windows","id":"CVE-2020-4355","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ibm:db2","products":["ibm:db2"],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Information disclosure in Spectrum Scale","id":"CVE-2020-4357"},"packages":[],"prev":{"headline":"Cross-site scripting in Cognos Analytics","id":"CVE-2020-4354"},"products":["DB2 for Linux- UNIX and Windows"],"published":"2020-07-01","related":[{"cvss_score":10,"headline":"IBM DB2 9.5 uses world-writable permissions for nodes.reg, which has unspecified impact and attack vectors.","id":"CVE-2012-1797","kev_date_added":null,"published":"2012-03-20"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2010-3731","kev_date_added":null,"published":"2010-10-05"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2010-3193","kev_date_added":null,"published":"2010-08-31"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2009-4335","kev_date_added":null,"published":"2009-12-16"},{"cvss_score":10,"headline":"Missing authorization in n/a","id":"CVE-2009-3473","kev_date_added":null,"published":"2009-09-29"},{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2008-6820","kev_date_added":null,"published":"2009-06-03"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2008-6821","kev_date_added":null,"published":"2009-06-03"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["IBM"]},"summary":"Remote attackers can cause denial of service in IBM DB2 by sending crafted SSL renegotiation requests, increasing system resource usage.","url":"https://insights.sbomify.com/CVE-2020-4355/"}