USN-4468-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
Dave Feldman, Jeff Warren, and Joel Cunningham discovered that Bind incorrectly handled certain truncated responses to a TSIG-signed request. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2020-8622)
{ "binaries": [ { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "bind9" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "bind9-host" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "bind9utils" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "dnsutils" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "host" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "libbind-dev" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "libbind9-90" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "libdns100" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "libisc95" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "libisccc90" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "libisccfg90" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "liblwres90" }, { "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm3", "binary_name": "lwresd" } ], "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro" }
{ "ecosystem": "Ubuntu:Pro:14.04:LTS", "cves": [ { "id": "CVE-2020-8622", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H" }, { "type": "Ubuntu", "score": "medium" } ] } ] }