{"id":"USN-4365-1","summary":"bind9 vulnerabilities","details":"Lior Shafir, Yehuda Afek, and Anat Bremler-Barr discovered that Bind\nincorrectly limited certain fetches. A remote attacker could possibly use\nthis issue to cause Bind to consume resources, leading to a denial of\nservice, or possibly use Bind to perform a reflection attack.\n(CVE-2020-8616)\n\nTobias Klein discovered that Bind incorrectly handled checking TSIG\nvalidity. A remote attacker could use this issue to cause Bind to crash,\nresulting in a denial of service, or possibly perform other attacks.\n(CVE-2020-8617)\n","modified":"2026-02-10T04:41:50Z","published":"2020-05-19T11:43:43Z","related":["UBUNTU-CVE-2020-8616","UBUNTU-CVE-2020-8617"],"upstream":["CVE-2020-8616","CVE-2020-8617","UBUNTU-CVE-2020-8616","UBUNTU-CVE-2020-8617"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4365-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8616"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8617"}],"affected":[{"package":{"name":"bind9","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.16?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.10.3.dfsg.P4-8ubuntu1.16"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bind9","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"bind9-host","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"bind9utils","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"dnsutils","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"host","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libbind-dev","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libbind-export-dev","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libbind9-140","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libdns-export162","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libdns162","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libirs-export141","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libirs141","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libisc-export160","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libisc160","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libisccc-export140","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libisccc140","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libisccfg-export140","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"libisccfg140","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"liblwres141","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"},{"binary_name":"lwresd","binary_version":"1:9.10.3.dfsg.P4-8ubuntu1.16"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4365-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2020-8616","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-8617","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"bind9","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.12?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.3+dfsg-1ubuntu1.12"}]}],"versions":["1:9.10.3.dfsg.P4-12.6ubuntu1","1:9.11.2.P1-1ubuntu2","1:9.11.2.P1-1ubuntu3","1:9.11.2.P1-1ubuntu4","1:9.11.2.P1-1ubuntu5","1:9.11.3+dfsg-1ubuntu1","1:9.11.3+dfsg-1ubuntu1.1","1:9.11.3+dfsg-1ubuntu1.2","1:9.11.3+dfsg-1ubuntu1.3","1:9.11.3+dfsg-1ubuntu1.5","1:9.11.3+dfsg-1ubuntu1.7","1:9.11.3+dfsg-1ubuntu1.8","1:9.11.3+dfsg-1ubuntu1.9","1:9.11.3+dfsg-1ubuntu1.10","1:9.11.3+dfsg-1ubuntu1.11"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bind9","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"bind9-host","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"bind9utils","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"dnsutils","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libbind-dev","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libbind-export-dev","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libbind9-160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libdns-export1100","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libdns1100","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libirs-export160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libirs160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libisc-export169","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libisc169","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libisccc-export160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libisccc160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libisccfg-export160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"libisccfg160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"},{"binary_name":"liblwres160","binary_version":"1:9.11.3+dfsg-1ubuntu1.12"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4365-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-8616","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-8617","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"bind9","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.16.1-0ubuntu2.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.16.1-0ubuntu2.1"}]}],"versions":["1:9.11.5.P4+dfsg-5.1ubuntu2","1:9.11.5.P4+dfsg-5.1ubuntu3","1:9.11.5.P4+dfsg-5.1ubuntu4","1:9.11.5.P4+dfsg-5.1ubuntu5","1:9.11.14+dfsg-1ubuntu1","1:9.11.14+dfsg-3ubuntu1","1:9.16.0-1ubuntu3","1:9.16.0-1ubuntu4","1:9.16.0-1ubuntu5","1:9.16.1-0ubuntu1","1:9.16.1-0ubuntu2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bind9","binary_version":"1:9.16.1-0ubuntu2.1"},{"binary_name":"bind9-dnsutils","binary_version":"1:9.16.1-0ubuntu2.1"},{"binary_name":"bind9-host","binary_version":"1:9.16.1-0ubuntu2.1"},{"binary_name":"bind9-libs","binary_version":"1:9.16.1-0ubuntu2.1"},{"binary_name":"bind9-utils","binary_version":"1:9.16.1-0ubuntu2.1"},{"binary_name":"bind9utils","binary_version":"1:9.16.1-0ubuntu2.1"},{"binary_name":"dnsutils","binary_version":"1:9.16.1-0ubuntu2.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4365-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-8616","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-8617","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}