CVE-2016-8740
Scores
EPSS
Percentile: 68.3%
CVSS
CVSS Score: 5.9/10
All CVSS Scores
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
High (H)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Medium
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Partial
Measures the impact to the availability of the impacted component
Description
The mod_http2 module in the Apache HTTP Server 2.4.17 through 2.4.23, when the Protocols configuration includes h2 or h2c, does not restrict request-header length, which allows remote attackers to cause a denial of service (memory consumption) via crafted CONTINUATION frames in an HTTP/2 request.
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Sources
CWEs
Exploits
Vulnerable Software (18)
Type: Configuration
Product: apache2
Operating System: debian
{ "fixed": "2.4.25-1"}
Source: debian
Type: Configuration
Product: apache2
Operating System: debian jessie 8
{ "unaffected": true}
Source: debian
Type: Configuration
Product: apache2
Operating System: debian wheezy 7
{ "unaffected": true}
Source: debian
Type: Configuration
Product: apache2
Operating System: ubuntu trusty 14.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu xenial 16.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu yakkety 16.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: apache2
Operating System: ubuntu zesty 17.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: httpd24-httpd
Operating System: rhel
{ "fixed": "2.4.25-9.el6"}
Source: redhat
Type: Configuration
Product: httpd24-httpd
Operating System: rhel
{ "fixed": "2.4.25-9.el6"}
Source: redhat
Type: Configuration
Product: httpd24-httpd
Operating System: rhel
{ "fixed": "2.4.25-9.el7"}
Source: redhat
Type: Configuration
Product: httpd24-httpd
Operating System: rhel
{ "fixed": "2.4.25-9.el7"}
Source: redhat
Type: Configuration
Product: jbcs-httpd24-httpd
Operating System: rhel
{ "fixed": "2.4.23-120.jbcs.el6"}
Source: redhat
Type: Configuration
Product: jbcs-httpd24-httpd
Operating System: rhel
{ "fixed": "2.4.23-120.jbcs.el7"}
Source: redhat
Type: Configuration
Product: jbcs-httpd24-mod_security
Operating System: rhel
{ "fixed": "2.9.1-19.GA.jbcs.el6"}
Source: redhat
Type: Configuration
Product: jbcs-httpd24-mod_security
Operating System: rhel
{ "fixed": "2.9.1-19.GA.jbcs.el7"}
Source: redhat
Type: Configuration
Product: jbcs-httpd24-openssl
Operating System: rhel
{ "fixed": "1.0.2h-13.jbcs.el6"}
Source: redhat
Type: Configuration
Product: jbcs-httpd24-openssl
Operating System: rhel
{ "fixed": "1.0.2h-13.jbcs.el7"}
Source: redhat
Type: Configuration
Vendor: *
Product: http_server
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.19:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.21:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.22:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd