CVE-2011-1473

OpenSSL before 0.9.8l, and 0.9.8m through 1.x, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-5094. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment

🔗 References (50)

• cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2014-02/0061.html
• cve@mitrehttp://marc.info/?l=bugtraq&m=133951357207000&w=2
• cve@mitrehttp://orchilles.com/2011/03/ssl-renegotiation-dos.html
• cve@mitrehttp://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html
• cve@mitrehttp://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html
• cve@mitrehttp://www.ietf.org/mail-archive/web/tls/current/msg07553.html
• cve@mitrehttp://www.ietf.org/mail-archive/web/tls/current/msg07564.html
• cve@mitrehttp://www.ietf.org/mail-archive/web/tls/current/msg07567.html
• cve@mitrehttp://www.ietf.org/mail-archive/web/tls/current/msg07576.html
• cve@mitrehttp://www.ietf.org/mail-archive/web/tls/current/msg07577.html
• cve@mitrehttp://www.openwall.com/lists/oss-security/2011/07/08/2
• cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=707065
• cve@mitrehttps://lists.apache.org/thread.html/142b93d261e8ac7c5ceffdce848d622404abc1c286bbc999f43a9e10%40%3Cdev.rocketmq.apache.org%3E
• cve@mitrehttps://lists.apache.org/thread.html/6121becfdd23f9aeb675d5db80616536277d5931d6cde9dca292e509%40%3Cdev.rocketmq.apache.org%3E
• cve@mitrehttps://lists.apache.org/thread.html/8be38d35654441140db8eb3f7433524b3653ac3fdc26e2fa94626a3a%40%3Cdev.rocketmq.apache.org%3E