CVE-2020-5255

LOW2.6

Prevent cache poisoning via a Response Content-Type header

Published Mar 30, 2020

Modified 1 years ago

Details

In Symfony before versions 4.4.7 and 5.0.7, when a Response does not contain a Content-Type header, affected versions of Symfony can fallback 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 prevent the use of the website by other users. This has been patched in versions 4.4.7 and 5.0.7.

References

WEB

https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6

WEB

https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C36JLPHUPKDFAX6D5WYFC4ALO2K7RDUQ/

WEB

https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2020-5255

CVSS Analysis