CVE-2013-4389: Possible DoS Vulnerability

October 16, 2013 (updated August 8, 2019)

A carefully crafted email address in conjunction with the Action Mailer logger format string could take advantage of a bug in Ruby’s sprintf implementation and possibly lead to a denial of service attack. Impacted Ruby code will look something like this: "some string #{user_input}" % some_number

References

seclists.org/oss-sec/2013/q4/118

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