CVEvulnerability
CVE-2011-5094
4.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2012-06-16
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
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
Affected configurations
• mozilla network security services 3.2
• mozilla network security services 3.2.1
• mozilla network security services 3.3
• mozilla network security services 3.3.1
• mozilla network security services 3.3.2
• mozilla network security services 3.4
• mozilla network security services 3.4.1
• mozilla network security services 3.4.2
• mozilla network security services 3.5
• mozilla network security services 3.6
• mozilla network security services 3.6.1
• mozilla network security services 3.7
• mozilla network security services 3.7.1
• mozilla network security services 3.7.2
• mozilla network security services 3.7.3
• mozilla network security services 3.7.5
• mozilla network security services 3.7.7
• mozilla network security services 3.8
• mozilla network security services 3.9
• mozilla network security services 3.11.2
• mozilla network security services 3.11.3
• mozilla network security services 3.11.4
• mozilla network security services 3.11.5
References
- http://orchilles.com/2011/03/ssl-renegotiation-dos.html orchilles.com
- http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html vincent.bernat.im
- http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html www.educatedguesswork.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07553.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07564.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07567.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07576.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07577.html www.ietf.org
- http://www.openwall.com/lists/oss-security/2011/07/08/2 www.openwall.com
- https://bugzilla.redhat.com/show_bug.cgi?id=707065 bugzilla.redhat.com
- http://orchilles.com/2011/03/ssl-renegotiation-dos.html orchilles.com
- http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html vincent.bernat.im
- http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html www.educatedguesswork.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07553.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07564.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07567.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07576.html www.ietf.org
- http://www.ietf.org/mail-archive/web/tls/current/msg07577.html www.ietf.org
- http://www.openwall.com/lists/oss-security/2011/07/08/2 www.openwall.com
- https://bugzilla.redhat.com/show_bug.cgi?id=707065 bugzilla.redhat.com