{"id":"USN-4468-1","summary":"bind9 vulnerabilities","details":"Emanuel Almeida discovered that Bind incorrectly handled certain TCP\npayloads. A remote attacker could possibly use this issue to cause Bind to\ncrash, resulting in a denial of service. This issue only affected Ubuntu\n20.04 LTS. (CVE-2020-8620)\n\nJoseph Gullo discovered that Bind incorrectly handled QNAME minimization\nwhen used in certain configurations. A remote attacker could possibly use\nthis issue to cause Bind to crash, resulting in a denial of service. This\nissue only affected Ubuntu 20.04 LTS. (CVE-2020-8621)\n\nDave Feldman, Jeff Warren, and Joel Cunningham discovered that Bind\nincorrectly handled certain truncated responses to a TSIG-signed request. A\nremote attacker could possibly use this issue to cause Bind to crash,\nresulting in a denial of service. (CVE-2020-8622)\n\nLyu Chiy discovered that Bind incorrectly handled certain queries. A remote\nattacker could possibly use this issue to cause Bind to crash, resulting in\na denial of service. (CVE-2020-8623)\n\nJoop Boonen discovered that Bind incorrectly handled certain subdomain\nupdate-policy rules. A remote attacker granted privileges to change certain\nparts of a zone could use this issue to change other contents of the zone,\ncontrary to expectations. This issue only affected Ubuntu 18.04 LTS and\nUbuntu 20.04 LTS. (CVE-2020-8624)\n","modified":"2026-02-10T04:41:54Z","published":"2020-08-21T11:29:29Z","related":["UBUNTU-CVE-2020-8620","UBUNTU-CVE-2020-8621","UBUNTU-CVE-2020-8622","UBUNTU-CVE-2020-8623","UBUNTU-CVE-2020-8624"],"upstream":["CVE-2020-8620","CVE-2020-8621","CVE-2020-8622","CVE-2020-8623","CVE-2020-8624","UBUNTU-CVE-2020-8620","UBUNTU-CVE-2020-8621","UBUNTU-CVE-2020-8622","UBUNTU-CVE-2020-8623","UBUNTU-CVE-2020-8624"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4468-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8620"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8621"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8622"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8623"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8624"}],"affected":[{"package":{"name":"bind9","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.17?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.10.3.dfsg.P4-8ubuntu1.17"}]}],"versions":["1:9.9.5.dfsg-11ubuntu1","1:9.9.5.dfsg-12","1:9.9.5.dfsg-12.1","1:9.9.5.dfsg-12.1ubuntu1","1:9.10.3.dfsg.P2-4","1:9.10.3.dfsg.P2-5","1:9.10.3.dfsg.P4-3","1:9.10.3.dfsg.P4-4","1:9.10.3.dfsg.P4-5","1:9.10.3.dfsg.P4-8","1:9.10.3.dfsg.P4-8ubuntu1","1:9.10.3.dfsg.P4-8ubuntu1.1","1:9.10.3.dfsg.P4-8ubuntu1.2","1:9.10.3.dfsg.P4-8ubuntu1.3","1:9.10.3.dfsg.P4-8ubuntu1.4","1:9.10.3.dfsg.P4-8ubuntu1.5","1:9.10.3.dfsg.P4-8ubuntu1.6","1:9.10.3.dfsg.P4-8ubuntu1.7","1:9.10.3.dfsg.P4-8ubuntu1.8","1:9.10.3.dfsg.P4-8ubuntu1.9","1:9.10.3.dfsg.P4-8ubuntu1.10","1:9.10.3.dfsg.P4-8ubuntu1.11","1:9.10.3.dfsg.P4-8ubuntu1.12","1:9.10.3.dfsg.P4-8ubuntu1.14","1:9.10.3.dfsg.P4-8ubuntu1.15","1:9.10.3.dfsg.P4-8ubuntu1.16"],"ecosystem_specific":{"availability":"No 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