{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-8618 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-8618 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Jun 2020. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8618 and fix it if it is affected.\n\nWhat it is: CVE-2020-8618 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Jun 2020. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8618 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu Linux. 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-2020-8618/ (Markdown: https://insights.sbomify.com/CVE-2020-8618/index.md)","id":"CVE-2020-8618","markdown":"https://insights.sbomify.com/CVE-2020-8618/index.md","name":"CVE-2020-8618","record":{"aliases":["ALPINE-CVE-2020-8618","DEBIAN-CVE-2020-8618","GHSA-2c3j-p34f-v2cr","UBUNTU-CVE-2020-8618"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"BIND9 DNS server","requires_auth":"high_privilege","summary":"An attacker can cause a denial of service in BIND9 by triggering an assertion failure during zone transfers with specially crafted data.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"bind","vendor":"isc"},{"product":"steelstore_cloud_integrated_storage","vendor":"netapp"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":4.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer","id":"CVE-2020-8618","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","isc:bind","netapp:steelstore_cloud_integrated_storage","opensuse:leap"],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":5,"next":{"headline":"A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer","id":"CVE-2020-8619"},"packages":[],"prev":{"headline":"A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c","id":"CVE-2020-8617"},"products":["BIND9"],"published":"2020-06-17","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["ISC"]},"summary":"An attacker can cause a denial of service in BIND9 by triggering an assertion failure during zone transfers with specially crafted data.","url":"https://insights.sbomify.com/CVE-2020-8618/"}