CVE-2020-5255

描述

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.

如何修補 CVE-2020-5255

要修補 CVE-2020-5255,請將受影響套件升級到下列已修補版本。

• —升級至 4.4.7 或更新版本
• —升級至 4.4.8-1 或更新版本
• —升級至 4.4.7 或更新版本
• —升級至 4.4.7 或更新版本

CVE-2020-5255 正在被利用嗎?

低 — EPSS 為 1.3%,目前沒有觀察到大規模利用活動。

受影響套件(4)

• >= 4.4.0, < 4.4.7, >= 5.0.0, < 5.0.7
• from 0, < 4.4.8-1
• >= 4.4.0, < 4.4.7
• >= 4.4.0, < 4.4.7

CVSS 分數

參考連結(10)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-5255
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-5255
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/symfony/http-foundation/CVE-2020-5255.yaml
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2020-5255.yaml