CPANSA-Crypt-PBKDF2-2017-20240: Crypt-PBKDF2 vulnerability

Publisher giterlizzi Document category csaf_security_advisory
Initial release date 2026-06-12T00:00:00 Engine CSAF Perl Toolkit 0.26
Current release date 2026-06-12T00:00:00 Build Date
Current version 1 Status final
CVSS v3.1 Base Score 5.9 Severity
Original language Language en
Also referred to

Vulnerability Description

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.

Vulnerabilities

CVE-2017-20240

Vulnerability Description

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.

Weakness CWE-208 : Observable Timing Discrepancy

Product status

Known affected
Product Score
Crypt-PBKDF2 less than 0.261630
CVSS Version CVSS Vector CVSS Base Score CVSS Base Severity
3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N 5.9 Medium
Fixed

giterlizzi

Namespace: https://github.com/giterlizzi/

gdt@cpan.org

References

Revision history

Version Date of the revision Summary of the revision
1 Fri Jun 12 00:00:00 2026 First release

Sharing rules

TLP:WHITE
For the TLP version see: https://www.first.org/tlp/