Description
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
Advisories 1
- WID-SEC-2024-1591 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2024
References
- http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html
- [tls] 20110315 Re: SSL Renegotiation DOS mailing-list
- [tls] 20110318 Re: SSL Renegotiation DOS mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=707065
- http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html
- [oss-security] 20110708 SSL renegotiation DoS CVE-2011-1473 mailing-list
- [tls] 20110318 Re: SSL Renegotiation DOS mailing-list
- http://orchilles.com/2011/03/ssl-renegotiation-dos.html
- [tls] 20110315 SSL Renegotiation DOS mailing-list
- [tls] 20110315 Re: SSL Renegotiation DOS mailing-list