CVE-2008-3656
Scores
EPSS
Percentile: 75.8%
CVSS
CVSS Score: 7.8/10
All CVSS Scores
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
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
Low (L)
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
Complete
Measures the impact to the availability of the impacted component
Description
Algorithmic complexity vulnerability in the WEBrick::HTTPUtils.split_header_value function in WEBrick::HTTP::DefaultFileHandler in WEBrick in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted HTTP request that is processed by a backtracking regular expression.
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Sources
CWEs
Related Vulnerabilities
Exploits
Vulnerable Software (7)
Type: Configuration
Product: ruby
Operating System: rhel 4
{ "fixed": "1.8.1-7.el4_7.1"}
Source: redhat
Type: Configuration
Product: ruby
Operating System: rhel 5
{ "fixed": "1.8.5-5.el5_2.5"}
Source: redhat
Type: Configuration
Product: ruby1.8
Operating System: ubuntu hardy 8.04
{ "fixed": "1.8.6.111-2ubuntu1.2"}
Source: ubuntu
Type: Configuration
Product: ruby1.8
Operating System: debian
{ "fixed": "1.8.7.72-1"}
Source: debian
Type: Configuration
Product: ruby1.9
Operating System: ubuntu hardy 8.04
{ "unfixed": true}
Source: ubuntu
Type: Configuration
Product: ruby1.9
Operating System: debian
{ "fixed": "1.9.0.2-6"}
Source: debian
Type: Configuration
Vendor: ruby-lang
Product: ruby
Operating System: * * *
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.8.5", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lan...
{ "cpe_match": [ { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.8.5", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.6.8:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.0:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.1:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.1:-9:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.2:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.2:preview2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.2:preview3:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.2:preview4:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.3:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.3:preview1:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.3:preview2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.3:preview3:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.4:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.4:preview1:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.4:preview2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.4:preview3:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:p11:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:p113:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:p115:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:p12:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:p2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:p35:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:preview1:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:preview2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:preview3:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:preview4:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.5:preview5:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.6:p110:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.6:p114:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.6:preview1:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.6:preview2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.6:preview3:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:p17:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:p22:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:p71:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:preview1:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:preview2:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:preview3:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.8.7:preview4:*:*:*:*:*:*", "vulnerable": true }, { "cpe23uri": "cpe:2.3:a:ruby-lang:ruby:1.9.0:*:*:*:*:*:*:*", "vulnerable": true } ], "operator": "OR"}
Source: nvd