Arbitrary Code Execution Affecting symfony/symfony package, versions >=3.4.0, <3.4.35 >=4.2.0, <4.2.12 >=4.3.0, <4.3.8
Snyk CVSS
Attack Complexity
Low
Threat Intelligence
EPSS
0.61% (79th
percentile)
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Test your applications- Snyk ID SNYK-PHP-SYMFONYSYMFONY-535353
- published 22 Nov 2019
- disclosed 13 Nov 2019
- credit wisdomtree
Introduced: 13 Nov 2019
CVE-2019-18889 Open this link in a new tabHow to fix?
Upgrade symfony/symfony to version 3.4.35, 4.2.12, 4.3.8 or higher.
Overview
symfony/symfony is a PHP framework for web applications and a set of reusable PHP components.
Affected versions of this package are vulnerable to Arbitrary Code Execution. When an instance of TagAwareAdapter is destructed, Symfony execute callables stored in privates properties in order to invalidates tags. When the instance has been created by unserializing an external payload, those properties are not checked leading to a remote code execution.