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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
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.
Metrics
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OR
*cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* versions from (including) 4.4.0 up to (excluding) 4.4.7
*cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.7
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Added
CWE
NIST CWE-20
Changed
Reference Type
https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6 No Types Assigned
https://github.com/symfony/symfony/commit/dca343442e6a954f96a2609e7b4e9c21ed6d74e6 Patch, Third Party Advisory
Changed
Reference Type
https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859 No Types Assigned
https://github.com/symfony/symfony/security/advisories/GHSA-mcx4-f5f5-4859 Third Party Advisory
Changed
Reference Type
https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header No Types Assigned
https://symfony.com/blog/cve-2020-5255-prevent-cache-poisoning-via-a-response-content-type-header Third Party Advisory
CVE Modified by GitHub, Inc.3/31/2020 11:15:21 AM
Action
Type
Old Value
New Value
Changed
Description
In Symfony before version 4.4, 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 version 4.4.
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.
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.
In Symfony before version 4.4, 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 version 4.4.
CVE Modified by GitHub, Inc.3/30/2020 6:15:15 PM
Action
Type
Old Value
New Value
Changed
Description
In Symfony before version 4.4, 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 version 4.4.
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.
Quick Info
CVE Dictionary Entry: CVE-2020-5255 NVD
Published Date: 03/30/2020 NVD
Last Modified: 11/06/2023
Source: GitHub, Inc.