CVE-2024-50340

Description

symfony/runtime is a module for the Symphony PHP framework which enables decoupling PHP applications from global state. When the `register_argv_argc` php directive is set to `on` , and users call any URL with a special crafted query string, they are able to change the environment or debug mode used by the kernel when handling the request. As of versions 5.4.46, 6.4.14, and 7.1.7 the `SymfonyRuntime` now ignores the `argv` values for non-SAPI PHP runtimes. All users are advised to upgrade. There are no known workarounds for this vulnerability.

How to fix CVE-2024-50340

To remediate CVE-2024-50340, upgrade the affected package to a fixed version below.

• —upgrade to 5.4.23+dfsg-1+deb12u3 or later
• —upgrade to 5.4.23+dfsg-1+deb12u3 or later
• —upgrade to 5.4.46 or later
• —upgrade to 5.4.46 or later

Is CVE-2024-50340 being exploited?

Likely — EPSS is 88.7%, placing CVE-2024-50340 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.

Affected packages (4)

• from 0, < 5.4.23+dfsg-1+deb12u3
• from 0, < 5.4.23+dfsg-1+deb12u3
• >= 5.3.0, < 5.4.46
• >= 5.3.0, < 5.4.46

CVSS scores

References (8)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2024-50340
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2024-50340
• PATCHgithub.com/symfony/symfony
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/symfony/runtime/CVE-2024-50340.yaml