CVE-2019-10912 Deserialization of untrusted data in Symfony

What is CVE-2019-10912?

CVE-2019-10912 is a high-severity unsafe deserialization vulnerability in Sensiolabs Symfony, published on 16 May 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Symfony before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, it is possible to cache objects that may contain bad user input. On serialization or unserialization, this could result in the deletion of files that the current user has access to. This is related to symfony/cache and symfony/phpunit-bridge.

Weakness: CWE-502

Which versions are affected by CVE-2019-10912?

26 open source packages ship an affected version, including symfony/phpunit-bridge, symfony/cache and symfony/symfony. It affects 1 product.

Products include Sensiolabs Symfony.

How do I fix CVE-2019-10912?

Upgrade symfony/phpunit-bridge to a fixed version for your release line: 2.8.50, 3.4.26, 4.1.12 or 4.2.7.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2019-10912 being exploited?

There is no known exploitation of CVE-2019-10912 in the wild and no public exploit code.

Other vulnerabilities in Sensiolabs Symfony

• CVE-2019-11325 Improper Input Validation in Symfony Critical 9.8
• CVE-2017-11365 Symfony Incorrect Access Control Critical 9.8
• CVE-2019-10913 Invalid HTTP method overrides allow possible XSS or other attacks in Symfony Critical 9.8
• CVE-2018-11407 Symfony Authentication Bypass Critical 9.8
• CVE-2016-2403 Symfony Authentication Bypass Critical 9.8

All Sensiolabs Symfony vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-10912, GHSA-w2fr-65vp-mxw3, UBUNTU-CVE-2019-10912.