bcrypt-ruby Gem for Ruby incorrect encoding of non US-ASCII characters (JRuby only)

Metadata

unknown
unknown
bcrypt
mindrot.org
2010-02-01
2017-04-01 19:10
2017-01-05 20:14

Description

bcrypt-ruby Gem for Ruby suffered from a bug related to character
encoding that substantially reduced the entropy of hashed passwords
containing non US-ASCII characters. An incorrect encoding step
transparently replaced such characters by '?' prior to hashing. In the
worst case of a password consisting solely of non-US-ASCII characters,
this would cause its hash to be equivalent to all other such passwords
of the same length. This issue only affects the JRuby implementation.

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Affected package information

Package Patched in Unaffected in
bcrypt >= 2.1.4 None