Vulnerabilities > Ruby Lang > Ruby > Critical

DATE CVE VULNERABILITY TITLE RISK
2022-09-29 CVE-2016-2338 Out-of-bounds Write vulnerability in multiple products
An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby.
network
low complexity
ruby-lang debian CWE-787
critical
9.8
2022-05-09 CVE-2022-28738 Double Free vulnerability in Ruby-Lang Ruby
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.
network
low complexity
ruby-lang CWE-415
critical
9.8
2019-11-26 CVE-2011-4121 Inadequate Encryption Strength vulnerability in Ruby-Lang Ruby
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.
network
low complexity
ruby-lang CWE-326
critical
9.8
2018-11-16 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.
network
low complexity
ruby-lang canonical debian redhat
critical
9.8
2018-04-03 CVE-2018-8780 Path Traversal vulnerability in multiple products
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the Dir.open, Dir.new, Dir.entries and Dir.empty? methods do not check NULL characters.
network
low complexity
ruby-lang canonical debian CWE-22
critical
9.1
2017-12-20 CVE-2017-17790 Injection vulnerability in Ruby-Lang Ruby
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 beginning with a '|' character, a different vulnerability than CVE-2017-17405.
network
low complexity
ruby-lang CWE-74
critical
9.8
2017-09-15 CVE-2017-0898 Use of Externally-Controlled Format String vulnerability in Ruby-Lang Ruby
Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value.
network
low complexity
ruby-lang CWE-134
critical
9.1
2017-08-31 CVE-2017-14064 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Ruby through 2.2.7, 2.3.x through 2.3.4, and 2.4.x through 2.4.1 can expose arbitrary memory during a JSON.generate call.
network
low complexity
ruby-lang debian canonical redhat CWE-119
critical
9.8
2017-07-19 CVE-2017-11465 Out-of-bounds Write vulnerability in Ruby-Lang Ruby 2.4.1
The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y.
network
low complexity
ruby-lang CWE-787
critical
9.8
2017-05-24 CVE-2017-9225 Out-of-bounds Write vulnerability in multiple products
An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5.
network
low complexity
oniguruma-project ruby-lang php CWE-787
critical
9.8