Crypt::SecretBuffer versions before 0.019 for Perl is suseceptible to timing attacks. For example, if Crypt::SecretBuffer was used to store and compare plaintext passwords, then discrepencies in timing could be used to guess the secret password.
To install Crypt::SecretBuffer, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Crypt::SecretBuffer
CPAN shell
perl -MCPAN -e shell install Crypt::SecretBuffer
For more information on module installation, please visit the detailed CPAN module installation guide.