CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
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.