{"id":"UBUNTU-CVE-2015-7686","details":"Algorithmic complexity vulnerability in Address.pm in the Email-Address module 1.908 and earlier for Perl allows remote attackers to cause a denial of service (CPU consumption) via a crafted string containing a list of e-mail addresses in conjunction with parenthesis characters that can be associated with nested comments. NOTE: the default configuration in 1.908 mitigates this vulnerability but misparses certain realistic comments.","modified":"2025-10-24T04:45:28Z","published":"2015-10-06T01:59:00Z","upstream":["CVE-2015-7686"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-7686"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2015/10/02/13"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2015/09/27/1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-7686"}],"affected":[{"package":{"name":"libemail-address-perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libemail-address-perl@1.908-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.905-2","1.908-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libemail-address-perl","binary_version":"1.908-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-7686.json"}},{"package":{"name":"libemail-address-perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libemail-address-perl@1.908-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.908-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libemail-address-perl","binary_version":"1.908-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-7686.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}