CVE-2024-2408
Last modified
CVE-2024-2408 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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. EPSS estimates a 1.16% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | >= 8.1.0, < 8.1.29 |
| Php | Php | >= 8.2.0, < 8.2.20 |
| Php | Php | >= 8.3.0, < 8.3.8 |
| Fedoraproject | Fedora | 40 |
References
- https://github.com/php/php-src/security/advisories/GHSA-hh26-4ppw-5864Exploit, Third Party Advisory
- https://github.com/php/php-src/security/advisories/GHSA-hh26-4ppw-5864Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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