--- title: "CVE-2024-4577\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2024-4577?format=md keywords: index, follow --- # CVE-2024-4577 Publication date 9 June 2024 Last updated 4 August 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **9.8 · Critical** [Score breakdown](https://ubuntu.com/security/CVE-2024-4577?format=md#impact-score) Toggle side navigation ## Description In PHP versions 8.1.\* before 8.1.29, 8.2.\* before 8.2.20, 8.3.\* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc. [Read the notes from the security team](https://ubuntu.com/security/CVE-2024-4577?format=md#notes) ## Status Show unmaintained releases | 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 | Not affected | | 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 | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) * [Patch details](https://ubuntu.com/security/CVE-2024-4577?format=md#patch-details) ## Notes --- ### [mdeslaur](https://launchpad.net/~mdeslaur) This appears to be a Windows specific issue, marking as not-affected ### Patch details For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) | Package | Patch details | | --- | --- | | php8.3 | * Upstream: [b6d1d39](https://github.com/php/php-src/commit/b6d1d3980a664882f03021e9bb918089ed3dc428) | ## Severity score breakdown CVSS version: CVSS v3.0 **Base score** 9.8 · Critical * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Network | | Attack complexity | Low | | Privileges required | None | | User interaction | None | | Scope | Unchanged | | Confidentiality impact | High | | Integrity impact | High | | Availability impact | High | * Scores | Parameter | Value | | --- | --- | | Base score | 9.8 · Critical | | Exploitability score | - | | Impact score | - | **Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-4577) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2024-4577) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2024-4577) * [Debian](https://security-tracker.debian.org/tracker/CVE-2024-4577) ### Other references * * * * * * * * * * * * * * * *