{"answers":{"affected":"It affects 8 products.","exploited":"There is no known exploitation of CVE-2020-8622 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-8622 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 21 Aug 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8622 and fix it if it is affected.\n\nWhat it is: CVE-2020-8622 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 21 Aug 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8622 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-2020-8622/ (Markdown: https://insights.sbomify.com/CVE-2020-8622/index.md)","id":"CVE-2020-8622","markdown":"https://insights.sbomify.com/CVE-2020-8622/index.md","name":"CVE-2020-8622","record":{"aliases":["ALPINE-CVE-2020-8622","DEBIAN-CVE-2020-8622","GHSA-fh6r-7j2f-pmw4","RHSA-2020:4183","SUSE-SU-2021:2876-1","UBUNTU-CVE-2020-8622","USN-4468-2"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"BIND DNS server","requires_auth":"low_privilege","summary":"An attacker can cause a denial of service in BIND by sending a truncated TSIG response, triggering an assertion failure and crashing the server.","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":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"bind","vendor":"isc"},{"product":"steelstore_cloud_integrated_storage","vendor":"netapp"},{"product":"leap","vendor":"opensuse"},{"product":"communications_diameter_signaling_router","vendor":"oracle"},{"product":"dns_server","vendor":"synology"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"In BIND 9.0.0 -\u003e 9.11.21, 9.12.0 -\u003e 9.16.5, 9.17.0 -\u003e 9.17.3, also affects 9.9.3-S1 -\u003e 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.","ecosystems":["Red Hat:enterprise_linux:6::client","Red Hat:enterprise_linux:6::computenode","Red Hat:enterprise_linux:6::server","Red Hat:enterprise_linux:6::workstation","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud Crowbar 8"],"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 truncated TSIG response can lead to an assertion failure","id":"CVE-2020-8622","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","isc:bind","netapp:steelstore_cloud_integrated_storage","opensuse:leap","oracle:communications_diameter_signaling_router"],"type":"denial_of_service","year":"2020"},"n_packages":35,"n_references":13,"next":{"headline":"A flaw in native PKCS#11 code can lead to a remotely triggerable assertion failure in pk11.c","id":"CVE-2020-8623"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/redhat/bind","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-chroot","purl":"pkg:rpm/redhat/bind-chroot","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-debuginfo","purl":"pkg:rpm/redhat/bind-debuginfo","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-devel","purl":"pkg:rpm/redhat/bind-devel","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-libs","purl":"pkg:rpm/redhat/bind-libs","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-sdb","purl":"pkg:rpm/redhat/bind-sdb","source":"RHSA-2020:4183"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["32:9.8.2-0.68.rc1.el6_10.8"],"introduced":["0"],"last_affected":[],"package":"bind-utils","purl":"pkg:rpm/redhat/bind-utils","source":"RHSA-2020:4183"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2021:2876-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL","source":"SUSE-SU-2021:2876-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL","source":"SUSE-SU-2021:2876-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2021:2876-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2021:2876-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2021:2876-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["9.9.9P1-63.28.1"],"introduced":["0"],"last_affected":[],"package":"bind","purl":"pkg:rpm/suse/bind\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2021:2876-1"}],"prev":{"headline":"Attempting QNAME minimization after forwarding can lead to an assertion failure in resolver.c","id":"CVE-2020-8621"},"products":["BIND9"],"published":"2020-08-21","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":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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 BIND by sending a truncated TSIG response, triggering an assertion failure and crashing the server.","url":"https://insights.sbomify.com/CVE-2020-8622/"}