CVE-2011-5094
Mozilla Network Security Services (NSS) 3.x, with certain settings of the SSL_ENABLE_RENEGOTIATION option, does not properly restrict…
- Published
- Updated
- Reserved
- Assigned by
- mitre
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
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (10)
- http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html (opens in a new tab)x_refsource_MISCx_transferred
- [tls] 20110315 Re: SSL Renegotiation DOS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tls] 20110318 Re: SSL Renegotiation DOS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=707065 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html (opens in a new tab)x_refsource_MISCx_transferred
- [oss-security] 20110708 SSL renegotiation DoS CVE-2011-1473 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tls] 20110318 Re: SSL Renegotiation DOS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://orchilles.com/2011/03/ssl-renegotiation-dos.html (opens in a new tab)x_refsource_MISCx_transferred
- [tls] 20110315 SSL Renegotiation DOS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [tls] 20110315 Re: SSL Renegotiation DOS (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .