Vulnerability Name:

CVE-2011-5094

Assigned:2012-06-16
Published:2012-06-16
Updated:2012-06-18
Summary:** DISPUTED ** 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.
CVSS v3 Severity:3.7 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.3 Medium (CCN CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-Other
References:Source: MITRE
Type: CNA
CVE-2011-5094

Source: MISC
Type: UNKNOWN
http://orchilles.com/2011/03/ssl-renegotiation-dos.html

Source: MISC
Type: UNKNOWN
http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html

Source: MISC
Type: UNKNOWN
http://www.educatedguesswork.org/2011/10/ssltls_and_computational_dos.html

Source: MLIST
Type: UNKNOWN
[tls] 20110315 SSL Renegotiation DOS

Source: MLIST
Type: UNKNOWN
[tls] 20110315 Re: SSL Renegotiation DOS

Source: MLIST
Type: UNKNOWN
[tls] 20110315 Re: SSL Renegotiation DOS

Source: MLIST
Type: UNKNOWN
[tls] 20110318 Re: SSL Renegotiation DOS

Source: MLIST
Type: UNKNOWN
[tls] 20110318 Re: SSL Renegotiation DOS

Source: MLIST
Type: UNKNOWN
[oss-security] 20110708 SSL renegotiation DoS CVE-2011-1473

Source: MISC
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=707065

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:network_security_services:3.2:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.3:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.4:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.4.1:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.4.2:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.5:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.6:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.6.1:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.7:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.7.1:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.7.2:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.7.3:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.7.5:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.7.7:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.8:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.9:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.11.2:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.11.3:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.11.4:*:*:*:*:*:*:*
  • OR cpe:/a:mozilla:network_security_services:3.11.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20115094000
    V
    		CVE-2011-5094 on Ubuntu 12.04 LTS (precise) - low.
    2012-06-16
    BACK
    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