CVE-2018-11386 Medium Severity Vulnerability detected by WhiteSource

[mend-bolt-for-github]

CVE-2018-11386 - Medium Severity Vulnerability

Vulnerable Library - symfony/http-foundation-v2.7.5

The HttpFoundation component defines an object-oriented layer for the HTTP specification.

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Dependency Hierarchy:

• laravel/framework-v5.1.20 (Root Library)
  • symfony/http-kernel-v2.7.5
    • ❌ symfony/http-foundation-v2.7.5 (Vulnerable Library)

Vulnerability Details

An issue was discovered in the HttpFoundation component in Symfony 2.7.x before 2.7.48, 2.8.x before 2.8.41, 3.3.x before 3.3.17, 3.4.x before 3.4.11, and 4.0.x before 4.0.11. The PDOSessionHandler class allows storing sessions on a PDO connection. Under some configurations and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources.

Publish Date: 2018-06-13

URL: CVE-2018-11386

CVSS 3 Score Details (5.9)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Change files

Origin: symfony/symfony@47e7268

Release Date: 2018-05-23

Fix Resolution: Replace or update the following file: PdoSessionHandler.php

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