The openssl_private_decrypt function in PHP, when using PKCS1 padding (OPENSSL_PKCS1_PADDING, which is the default), is vulnerable to the Marvin Attack unless it is used with an OpenSSL version that includes the changes from this pull request: https://github.com/openssl/openssl/pull/13817 (rsa_pkcs1_implicit_rejection). These changes are part of OpenSSL 3.2 and have also been backported to stable versions of various Linux distributions, as well as to the PHP builds provided for Windows since the previous release. All distributors and builders should ensure that this version is used to prevent PHP from being vulnerable. PHP Windows builds for the versions 8.1.29, 8.2.20 and 8.3.8 and above include OpenSSL patches that fix the vulnerability.
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cve-icon MITRE

Status: PUBLISHED

Assigner: php

Published: 2024-06-09T19:55:51.625Z

Updated: 2024-08-01T19:11:53.465Z

Reserved: 2024-03-12T21:18:50.326Z

Link: CVE-2024-2408

cve-icon Vulnrichment

Updated: 2024-08-01T19:11:53.465Z

cve-icon NVD

Status : Modified

Published: 2024-06-09T20:15:09.270

Modified: 2024-06-13T04:15:16.783

Link: CVE-2024-2408

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-06-07T00:00:00Z

Links: CVE-2024-2408 - Bugzilla