{"id":"CVE-2011-0539","details":"The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks.","modified":"2026-04-10T03:41:38.540115Z","published":"2011-02-10T18:00:57Z","references":[{"type":"ADVISORY","url":"http://secunia.com/advisories/43181"},{"type":"ADVISORY","url":"http://secunia.com/advisories/44269"},{"type":"ADVISORY","url":"http://www.openssh.com/txt/legacy-cert.adv"},{"type":"ADVISORY","url":"http://www.vupen.com/english/advisories/2011/0284"},{"type":"FIX","url":"http://www.openssh.com/txt/legacy-cert.adv"},{"type":"WEB","url":"http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777"},{"type":"WEB","url":"http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2011/02/04/2"},{"type":"WEB","url":"http://www.securityfocus.com/bid/46155"},{"type":"WEB","url":"http://www.securitytracker.com/id?1025028"},{"type":"WEB","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/65163"}],"schema_version":"1.7.5"}