Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the server:log listener (Symfony\Bridge\Monolog\Command\ServerLogCommand) binds to 0.0.0.0:9911 by default and processes each received frame with unserialize(base64_decode($message)) without authentication, integrity checks, or an allowed_classes allowlist, allowing any reachable host to submit attacker-chosen serialized PHP payloads that can crash the listener and may trigger object-injection gadget effects. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.4.52CPE matchmatch criteria | cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* | ||
>= 6.0.0, < 6.4.40CPE matchmatch criteria | cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* | ||
>= 7.0.0, < 7.4.12CPE matchmatch criteria | cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* | ||
>= 8.0.0, < 8.0.12CPE matchmatch criteria | cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.