CVE-2011-5094
Vulnerability from cvelistv5
Published
2012-06-16 21:00
Modified
2024-09-16 21:56
Severity ?
Summary
Mozilla Network Security Services (NSS) 3.x, with certain settings of the SSL_ENABLE_RENEGOTIATION option, 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-2011-1473. 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
cve@mitre.orghttp://orchilles.com/2011/03/ssl-renegotiation-dos.html
cve@mitre.orghttp://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html
cve@mitre.orghttp://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html
cve@mitre.orghttp://www.ietf.org/mail-archive/web/tls/current/msg07553.html
cve@mitre.orghttp://www.ietf.org/mail-archive/web/tls/current/msg07564.html
cve@mitre.orghttp://www.ietf.org/mail-archive/web/tls/current/msg07567.html
cve@mitre.orghttp://www.ietf.org/mail-archive/web/tls/current/msg07576.html
cve@mitre.orghttp://www.ietf.org/mail-archive/web/tls/current/msg07577.html
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2011/07/08/2
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=707065
af854a3a-2127-422b-91ae-364da2661108http://orchilles.com/2011/03/ssl-renegotiation-dos.html
af854a3a-2127-422b-91ae-364da2661108http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html
af854a3a-2127-422b-91ae-364da2661108http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html
af854a3a-2127-422b-91ae-364da2661108http://www.ietf.org/mail-archive/web/tls/current/msg07553.html
af854a3a-2127-422b-91ae-364da2661108http://www.ietf.org/mail-archive/web/tls/current/msg07564.html
af854a3a-2127-422b-91ae-364da2661108http://www.ietf.org/mail-archive/web/tls/current/msg07567.html
af854a3a-2127-422b-91ae-364da2661108http://www.ietf.org/mail-archive/web/tls/current/msg07576.html
af854a3a-2127-422b-91ae-364da2661108http://www.ietf.org/mail-archive/web/tls/current/msg07577.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/07/08/2
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=707065
Impacted products
Vendor Product Version
Show details on NVD website

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      "published": "2012-06-16T21:55:02.500",
      "references": "[{\"url\": \"http://orchilles.com/2011/03/ssl-renegotiation-dos.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07553.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07564.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07567.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07576.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07577.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2011/07/08/2\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=707065\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://orchilles.com/2011/03/ssl-renegotiation-dos.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07553.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07564.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07567.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07576.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.ietf.org/mail-archive/web/tls/current/msg07577.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2011/07/08/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=707065\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
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    },
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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\"},{\"lang\":\"es\",\"value\":\"** EN DISPUTA ** Mozilla Network Security Services (NSS) v3.x, con ciertos ajustes de la opci\u00f3n SSL_ENABLE_RENEGOTIATION, no restringen adecuadamente la renegociaci\u00f3n iniciada por el cliente dentro de los protocolos SSL y TLS, lo que podr\u00eda hacer m\u00e1s f\u00e1cil para los atacantes remotos causar una denegaci\u00f3n de servicio (consumo de CPU) mediante la realizaci\u00f3n de las renegociaciones de muchos dentro de una sola conexi\u00f3n, una vulnerabilidad diferente a CVE-2011-1473. NOTA: tambi\u00e9n se puede argumentar que es la responsabilidad de las implementaciones de servidores, no una biblioteca de seguridad, para prevenir o limitar la renegociaci\u00f3n cuando es inapropiado dentro de un entorno 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  }
}


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