CVE-2017-20240
MEDIUMCVSS 5.9/10EPSS 0.32%
Last modified
CVE-2017-20240 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is 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.
How severe is CVE-2017-20240?
CVE-2017-20240 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.
How do I fix CVE-2017-20240?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-20240?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST