VulnSocial

CVE-2017-20240Disclosure

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-208

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-06-12); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-12: 1Mentions · 2026-06-18: 1Technical Details · 2026-06-12: 1Technical Details · 2026-06-18: 106-1206-18
Signal classification1 categories
Disclosure
2100.0%
Referenced assets4 URLs
Full discourse2 posts
  • Open Source Security mailing list@oss_security
    Disclosure

    Perl CPAN Crypt::PBKDF2 before 0.261630 CVE-2017-20240: Timing attacks https://www.openwall.com/lists/oss-security/2026/06/12/3 CVE-2026-9638: Insecure random values for salts https://www.openwall.com/lists/oss-security/2026/06/12/4 CVE-2026-9641: Weak default algorithm and number of iterations https://www.openwall.com/lists/oss-security/2026/06/12/5

    Post summary

    The snippet announces several CVEs relating to Perl CPAN Crypt::PBKDF2 and provides brief technical details, but provides no PoC, exploit code, active exploitation reports, patches, or debunking statements.

    1000081
    4.6K followersView on X
  • CVE@CVEnew
    Disclosure

    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 … https://www.cve.org/CVERecord?id=CVE-2017-20240

    Post summary

    The text announces that Crypt::PBKDF2 versions prior to 0.261630 in Perl are vulnerable to timing attacks due to the use of Perl's built‑in eq comparison, with a reference to the CVE record, but no PoC, exploit, patch, or active exploitation information is provided.

    00000126
    57.6K followersView on X

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