Ruby on Rails JSON Gem Arbitrary Symbol Creation Remote DoS


2017-06-16 20:03
CVE-2013-0269 ruby1.8
CVE-2013-0269 ruby-json
CVE-2013-0269 ruby1.9.1
json Gem for Ruby JSON::GenericObject Function Arbitrary Addition Creation
2017-06-16 19:02
2017-04-01 19:10
2017-01-05 20:15


Ruby on Rails contains a flaw that may allow a remote denial of service.
The issue is due to the JSON gem being tricked in to generating Ruby symbols
during the parsing of certain JSON documents. Since Ruby symbols are not
garbage collected, a remote attacker can crash a users system. This also may
allow the attacker to create arbitrary objects that may be used to bypass
certain security mechanisms and potentially allow SQL injection attacks to
be conducted.

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Package Patched in Unaffected in
json ~> 1.5.5,~> 1.6.8,>= 1.7.7 None