{"id":"UBUNTU-CVE-2016-2147","details":"Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.","modified":"2026-01-30T01:03:45.044143Z","published":"2017-02-09T00:00:00Z","related":["USN-3935-1"],"upstream":["CVE-2016-2147"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-2147"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3935-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-2147"}],"affected":[{"package":{"name":"busybox","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/busybox@1:1.21.0-1ubuntu1.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.21.0-1ubuntu1.4"}]}],"versions":["1:1.20.0-8.1ubuntu1","1:1.20.0-9ubuntu1","1:1.20.0-9ubuntu2","1:1.21.0-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"busybox","binary_version":"1:1.21.0-1ubuntu1.4"},{"binary_name":"busybox-initramfs","binary_version":"1:1.21.0-1ubuntu1.4"},{"binary_name":"busybox-static","binary_version":"1:1.21.0-1ubuntu1.4"},{"binary_name":"busybox-syslogd","binary_version":"1:1.21.0-1ubuntu1.4"},{"binary_name":"udhcpc","binary_version":"1:1.21.0-1ubuntu1.4"},{"binary_name":"udhcpd","binary_version":"1:1.21.0-1ubuntu1.4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-2147.json"}},{"package":{"name":"busybox","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/busybox@1:1.22.0-15ubuntu1.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.22.0-15ubuntu1.4"}]}],"versions":["1:1.22.0-15ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"busybox","binary_version":"1:1.22.0-15ubuntu1.4"},{"binary_name":"busybox-initramfs","binary_version":"1:1.22.0-15ubuntu1.4"},{"binary_name":"busybox-static","binary_version":"1:1.22.0-15ubuntu1.4"},{"binary_name":"busybox-syslogd","binary_version":"1:1.22.0-15ubuntu1.4"},{"binary_name":"udhcpc","binary_version":"1:1.22.0-15ubuntu1.4"},{"binary_name":"udhcpd","binary_version":"1:1.22.0-15ubuntu1.4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-2147.json"}}],"schema_version":"1.7.3","severity":[{"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":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}