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CVE-2023-28837 Detail

Current Description

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.


View Analysis Description

Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://docs.wagtail.org/en/stable/reference/settings.html#wagtailimages-max-upload-size Product 
https://github.com/wagtail/wagtail/commit/3c0c64642b9e5b8d28b111263c7f4bddad6c3880 Patch 
https://github.com/wagtail/wagtail/commit/c9d2fcd650a88d76ae122646142245e5927a9165 Release Notes 
https://github.com/wagtail/wagtail/commit/cfa11bbe00dbe7ce8cd4c0bbfe2a898a690df2bf Patch 
https://github.com/wagtail/wagtail/commit/d4022310cbe497993459c3136311467c7ac6329a Release Notes 
https://github.com/wagtail/wagtail/releases/tag/v4.1.4 Release Notes 
https://github.com/wagtail/wagtail/releases/tag/v4.2.2 Release Notes 
https://github.com/wagtail/wagtail/security/advisories/GHSA-33pv-vcgh-jfg9 Mitigation  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption GitHub, Inc.  
CWE-770 Allocation of Resources Without Limits or Throttling GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-28837
NVD Published Date:
04/03/2023
NVD Last Modified:
11/06/2023
Source:
GitHub, Inc.