Summary
Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-9641: 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. CVE-2026-9638: Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography. CVE-2017-20240: Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2023 | perl-Crypt-PBKDF2 | 0:0.261630-1.amzn2023.0.1 |
Vulnerabilities 3
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High 7.5
Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts
Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable for cryptography.
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Medium 5.9
Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks
Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks. These versions use Perl's built-in eq comparison. Discrepancies in timing could be used to guess the underlying derived-key.
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Medium 5.3
Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number of iterations
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 …