CVE-2019-18888 Information

Description

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).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://github.com/symfony/symfony/releases/tag/v4.3.8 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DZNXRVHDQBNZQUCNRVZICPPBFRAUWUJX/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VXEAOEANNIVYANTMOJ42NKSU6BGNBULZ/ https://symfony.com/blog/cve-2019-18888-prevent-argument-injection-in-a-mimetypeguesser https://symfony.com/blog/symfony-4-3-8-released

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5