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TI-2017-14304 Aliases CVE-2017-20240GHSA-m538-6wp4-7h22

Crypt::PBKDF2 versions before 0.261630 for Perl are vulnerable to timing attacks

Priority LOW 26CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-208.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00319 25th percentileScored 2026-11-07
Fix Fixed Crypt::PBKDF2 (ARODLAND): 0.261630

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ARODLANDCrypt::PBKDF2before 0.2616300.261630Patch availableCNA
  • Crypt::PBKDF2 VendorARODLAND Affected before 0.261630 Fixed in 0.261630 Patch available CNA

Remediation

  • Fix · CNA Crypt::PBKDF2 (ARODLAND) Fixed in 0.261630

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ARODLAND Crypt::PBKDF2 0.261630

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-08466 Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for saltsPriority LOW 39
    • TI-2026-08469 Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number…Priority LOW 29
    Show all 3 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-20240
  2. 2026-10-03 Alias added: GHSA-m538-6wp4-7h22

References

Other 3

  • TI-2026-08466 Crypt::PBKDF2 versions before 0.261630 for Perl generate insecure random values for salts CVSS 3.1HIGH 7.5
  • TI-2026-08469 Crypt::PBKDF2 versions before 0.261630 for Perl have a weak default algorithm and number… CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences