CVE-2017-20240
June 12, 2026, 5:16 p.m.
5.9
Medium
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Crypt |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
CWE-208
Observable Timing Discrepancy
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | crypt | pbkdf2 | <0.261630 | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data - 3.1
- Attack Vector: NETWORK
- Attack Complexity: HIGH
- Privileges Required: NONE
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: NONE
- Availability Impact: NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Timeline
Published: June 12, 2026, 2:16 p.m.
Last Modified: June 12, 2026, 5:16 p.m.
Last Modified: June 12, 2026, 5:16 p.m.
Status : Deferred
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
9b29abf9-4ab0-4765-b253-1875cd9b441e
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.