Unscored severity · published Aug 13, 2008
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…
–
CVSS
70.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)70.2% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Ruby · Ruby-lang
through 1.8.5; 1.6.8; 1.8.0; 1.8.1; 1.8.1; 1.8.2; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2008-3656
CVE.org
https://www.cve.org/CVERecord?id=CVE-2008-3656
bugs.debian.org
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494401
lists.apple.com
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
secunia.com
http://secunia.com/advisories/31430
secunia.com
http://secunia.com/advisories/31697
secunia.com
http://secunia.com/advisories/32165
secunia.com
http://secunia.com/advisories/32219
More from Ruby
9.8
CVE-2022-28738
A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2
9.8
CVE-2016-2338
An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby
9.8
CVE-2011-4121
The OpenSSL extension of Ruby (Git trunk) versions after 2011-09-01 up to 2011-11-03 always generated an exponent value of '1' to be used for private RSA key generation
9.8
CVE-2018-16395
An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3
9.8
CVE-2017-17790
The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument…