{"id":"UBUNTU-CVE-2016-3959","details":"The Verify function in crypto/dsa/dsa.go in Go before 1.5.4 and 1.6.x before 1.6.1 does not properly check parameters passed to the big integer library, which might allow remote attackers to cause a denial of service (infinite loop) via a crafted public key to a program that uses HTTPS client certificates or SSH server libraries.","modified":"2025-07-16T07:34:27.095105Z","published":"2016-05-23T19:59:00Z","withdrawn":"2025-07-18T16:43:29Z","upstream":["CVE-2016-3959"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-3959"},{"type":"REPORT","url":"https://golang.org/cl/21533"},{"type":"REPORT","url":"http://seclists.org/oss-sec/2016/q2/11"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-3959"}],"affected":[{"package":{"name":"golang-1.6","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/golang-1.6@1.6.1-0ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-0ubuntu1"}]}],"versions":["1.6-0ubuntu1","1.6-0ubuntu2","1.6-0ubuntu3","1.6-0ubuntu4","1.6-0ubuntu5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"golang-1.6","binary_version":"1.6.1-0ubuntu1"},{"binary_name":"golang-1.6-doc","binary_version":"1.6.1-0ubuntu1"},{"binary_name":"golang-1.6-go","binary_version":"1.6.1-0ubuntu1"},{"binary_name":"golang-1.6-go-dbgsym","binary_version":"1.6.1-0ubuntu1"},{"binary_name":"golang-1.6-src","binary_version":"1.6.1-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-3959.json"}}],"schema_version":"1.7.3","severity":[{"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":"medium"}]}