CVE-2019-18888

High

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).

SeverityHigh
CVSS7.5
Exploit probability83. percentile2.2%
ProductSensiolabs Symfony
PublishedNov 21, 2019
First seenNov 21, 2019

How to fix

Affected products

ProductAffected versionsFixed in
sensiolabs symfony2.8.0 ≤ v ≤ 2.8.50, 3.4.0 ≤ v ≤ 3.4.34, 4.2.0 ≤ v ≤ 4.2.11, 4.3.0 ≤ v ≤ 4.3.7—
fedoraproject fedora30, 31—
symfony/http-foundationPackagist2.0.0 ≤ v < 2.8.52, 3.0.0 ≤ v < 3.4.35, 4.0.0 ≤ v < 4.2.12, 4.3.0 ≤ v < 4.3.82.8.52, 3.4.35, 4.2.12, 4.3.8
symfony/mimePackagist4.3.0 ≤ v < 4.3.84.3.8
symfony/symfonyPackagist2.0.0 ≤ v < 2.8.52, 3.0.0 ≤ v < 3.4.35, 4.0.0 ≤ v < 4.2.12, 4.3.0 ≤ v < 4.3.82.8.52, 3.4.35, 4.2.12, 4.3.8

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