CVE-2023-28837

描述

Wagtail is an open source content management system built on Django. Prior to versions 4.1.4 and 4.2.2, a memory exhaustion bug exists in Wagtail's handling of uploaded images and documents. For both images and documents, files are loaded into memory during upload for additional processing. A user with access to upload images or documents through the Wagtail admin interface could upload a file so large that it results in a crash of denial of service. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. It can only be exploited by admin users with permission to upload images or documents. Image uploads are restricted to 10MB by default, however this validation only happens on the frontend and on the backend after the vulnerable code. Patched versions have been released as Wagtail 4.1.4 and Wagtail 4.2.2). Site owners who are unable to upgrade to the new versions are encouraged to add extra protections outside of Wagtail to limit the size of uploaded files.

如何修補 CVE-2023-28837

要修補 CVE-2023-28837,請將受影響套件升級到下列已修補版本。

• —升級至 4.2.2 或更新版本
• —升級至 cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf 或更新版本

CVE-2023-28837 正在被利用嗎?

低 — EPSS 為 1.1%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• >= 4.2, < 4.2.2
• from 0, < cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf, < 3c0c64642b9e5b8d28b111263c7f4bddad6c3880, < c9d2fcd650a88d76ae122646142245e5927a9165, < d4022310cbe497993459c3136311467c7ac6329a | >= 4.2, < 4.2.2, from 0, < 4.1.4

CVSS 分數

參考連結(11)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-28837
• PATCHgithub.com/wagtail/wagtail
• WEBdocs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size
• WEBgithub.com/pypa/advisory-database/tree/main/vulns/wagtail/PYSEC-2023-56.yaml