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Vulnerability DatabaseCVE-2021-3990
CVE-2021-3990:
PHP vulnerability analysis and mitigation
Overview
Showdoc was found to be vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). The vulnerability was assigned CVE-2021-3990 and affects versions up to (excluding) 2.9.13 (NVD, CVE).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 6.5 (MEDIUM) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. The weakness is categorized under CWE-338 (Use of Cryptographically Weak Pseudo-Random Number Generator) (NVD).
Impact
The vulnerability could potentially lead to information disclosure due to the use of weak pseudo-random number generation methods (NVD).
Mitigation and workarounds
A patch has been released to address this vulnerability. Users should upgrade to version 2.9.13 or later. The fix implements improved random string generation using more secure methods including random_bytes for PHP7+ versions and enhanced entropy collection for older versions (Github Patch).
Additional resources
Source: This report was generated using AI
Related PHP vulnerabilities:
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