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CVE-2024-2408

Publication date 9 June 2024

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
php5 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
14.04 LTS trusty
Needs evaluation
php7.0 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial
Not affected
php7.2 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
php7.4 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Not affected
php8.1 24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Not affected
20.04 LTS focal Not in release
php8.2 24.04 LTS noble Not in release
23.10 mantic
Not affected
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
php8.3 24.04 LTS noble
Not affected
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release

Notes

mdeslaur

The OpenSSL commit was backported to Ubuntu packages in the following USN: https://ubuntu.com/security/notices/USN-6663-1 As such, I am marking this CVE as not-affected for the releases that have the updated OpenSSL package.

iconstantin

Fix additionally backported via USNs 6663-2 and 6663-3, updating respective releases as not-affected.

Severity score breakdown

Parameter Value
Base score 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N