Threats affecting pkg:github/Crypt-PBKDF2

Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations. The default algorithm is HMAC-SHA1, which should only be used for legacy systems. These versions default to using 1000 iterations. Depending on the chosen algorithm, 220,000 to 1,400,000 iterations should be used.

Crypt::PBKDF2 versions before 0.261630 for Perl use a cryptographically weak pseudo-random number generator for salt generation. Specifically, these versions rely on the built-in rand function, which is predictable and unsuitable for cryptographic purposes. This weakness can compromise the security of derived keys by making salts guessable.