CVE-2023-28837

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Summary

CVECVE-2023-28837
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-04-03 17:15:00 UTC
Updated2023-11-07 04:10:00 UTC
DescriptionWagtail 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.

Risk And Classification

Problem Types: CWE-400 | CWE-770

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Torchbox Wagtail All All All All

References

ReferenceSourceLinkTags
Release note for CVE-2023-28837 in 4.2.2 · wagtail/wagtail@c9d2fcd · GitHub MISC github.com
Release 4.1.4 · wagtail/wagtail · GitHub MISC github.com
Denial-of-service via memory exhaustion when uploading large files · Advisory · wagtail/wagtail · GitHub MISC github.com
Settings — Wagtail Documentation 4.1.1 documentation MISC docs.wagtail.org
Don't load images / documents into memory when calculating their hash · wagtail/wagtail@3c0c646 · GitHub MISC github.com
Release note for CVE-2023-28837 in 4.1.4 · wagtail/wagtail@d402231 · GitHub MISC github.com
Don't load temporary uploaded files into memory · wagtail/wagtail@cfa11bb · GitHub MISC github.com
Release 4.2.2 · wagtail/wagtail · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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