CVE-2020-5255 – symfony/http-foundation

Package

Manager: composer
Name: symfony/http-foundation
Vulnerable Version: >=4.4.0 <4.4.7 || >=5.0.0 <5.0.7

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00374 pctl0.58305

Details

Prevent cache poisoning via a Response Content-Type header in Symfony Description ----------- When a `Response` does not contain a `Content-Type` header, Symfony falls back to the format defined in the `Accept` header of the request, leading to a possible mismatch between the response's content and `Content-Type` header. When the response is cached, this can lead to a corrupted cache where the cached format is not the right one. Resolution ---------- Symfony does not use the `Accept` header anymore to guess the `Content-Type`. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6) for the 4.4 branch. Credits ------- I would like to thank Xavier Lacot from JoliCode for reporting & Yonel Ceruto and Tobias Schultze for fixing the issue.

Metadata

Created: 2020-03-30T20:09:16Z
Modified: 2021-01-08T20:25:26Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/03/GHSA-mcx4-f5f5-4859/GHSA-mcx4-f5f5-4859.json
CWE IDs: ["CWE-435"]
Alternative ID: GHSA-mcx4-f5f5-4859
Finding: F124
Auto approve: 1