CVE-2008-3656

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.

Affected products

Red Hat, Ruby, Webrick, Libruby1.9, Libruby1.9-Dbg, Ri1.9

Ruby-lang Ruby

≤ 1.8.5, 1.6.8, 1.8.0, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.6, 1.8.7, 1.9.0

CVSS 2.0

7.8 HIGH

EPSS

70.2% (99th percentile)

Weakness

CWE-399

NVD status

Modified

Published

2008-08-13