An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. If an application passes unvalidated user input as the file for which MIME type validation should occur, then arbitrary arguments are passed to the underlying file command. This is related to symfony/http-foundation (and symfony/mime in 4.3.x).
CVE-2019-18888 - High Severity Vulnerability
Symfony HttpFoundation Component
Library home page: https://api.github.com/repos/symfony/http-foundation/zipball/e6e0170e134bf25d03030b71a19ca409e036157a
Dependency Hierarchy: - drupal/core-8.3.6 (Root Library) - :x: **symfony/http-foundation-v2.8.28** (Vulnerable Library)
Found in HEAD commit: 27e1f740a162e55490d9ca929f243afbaa92476c
Found in base branch: master
An issue was discovered in Symfony 2.8.0 through 2.8.50, 3.4.0 through 3.4.34, 4.2.0 through 4.2.11, and 4.3.0 through 4.3.7. If an application passes unvalidated user input as the file for which MIME type validation should occur, then arbitrary arguments are passed to the underlying file command. This is related to symfony/http-foundation (and symfony/mime in 4.3.x).
Publish Date: 2019-11-21
URL: CVE-2019-18888
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://symfony.com/blog/cve-2019-18888-prevent-argument-injection-in-a-mimetypeguesser
Release Date: 2019-11-21
Fix Resolution: v2.8.52,v3.4.35,v4.2.12,v4.3.8
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