{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-10920 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-10920 is a high-severity vulnerability in cz.nic knot-resolver, published on 2 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-10920 and fix it if it is affected.\n\nWhat it is: CVE-2018-10920 is a high-severity vulnerability in cz.nic knot-resolver, published on 2 Aug 2018. 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-2018-10920 in the wild and no public exploit code.\n\nAffected product: cz.nic knot-resolver. 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-2018-10920/ (Markdown: https://insights.sbomify.com/CVE-2018-10920/index.md)","id":"CVE-2018-10920","markdown":"https://insights.sbomify.com/CVE-2018-10920/index.md","name":"CVE-2018-10920","record":{"aliases":["DEBIAN-CVE-2018-10920","GHSA-xv4h-w5rx-q9c8","UBUNTU-CVE-2018-10920"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS resolver","requires_auth":"none","summary":"Remote attackers can poison the DNS cache due to improper input validation in Knot Resolver, affecting DNS integrity.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"knot_resolver","vendor":"nic"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"Improper input validation bug in DNS resolver component of Knot Resolver before 2.4.1 allows remote attacker to poison cache.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2019-01-25","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2019-01-25T16:24:49Z","kind":"github_poc","ref":"https://github.com/shutingrz/CVE-2018-10920_PoC","stars":0,"title":"Knot Resolver CVE-2018-10920 / DO NOT ABUSE"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Other in knot-resolver","id":"CVE-2018-10920","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Integer overflow in ttembed","id":"CVE-2018-10921"},"packages":[],"prev":{"headline":"Information disclosure in samba","id":"CVE-2018-10919"},"products":["knot-resolver"],"published":"2018-08-02","related":[{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-46317","kev_date_added":null,"published":"2023-10-22"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2023-26249","kev_date_added":null,"published":"2023-02-21"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2021-40083","kev_date_added":null,"published":"2021-08-25"},{"cvss_score":7.5,"headline":"Denial of service in knot-resolver","id":"CVE-2018-1110","kev_date_added":null,"published":"2021-03-30"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2020-12667","kev_date_added":null,"published":"2020-05-19"},{"cvss_score":5.3,"headline":"Other in n/a","id":"CVE-2022-32983","kev_date_added":null,"published":"2022-06-20"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["cz.nic"]},"summary":"Remote attackers can poison the DNS cache due to improper input validation in Knot Resolver, affecting DNS integrity.","url":"https://insights.sbomify.com/CVE-2018-10920/"}