CVE-2019-18888
Publication date 21 November 2019
Last updated 26 August 2025
Ubuntu priority
Cvss 3 Severity Score
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).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| symfony | 26.04 LTS resolute |
Not affected
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Vulnerable
|
|
| 16.04 LTS xenial | Ignored end of standard support, was needed | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
Other references
- https://symfony.com/blog/cve-2019-18888-prevent-argument-injection-in-a-mimetypeguesser
- https://github.com/symfony/symfony/commit/691486e43ce0e4893cd703e221bafc10a871f365
- https://github.com/symfony/symfony/commit/77ddabf2e785ea85860d2720cc86f7c5d8967ed5
- https://www.cve.org/CVERecord?id=CVE-2019-18888