matrix-media-repo is an open-source multi-domain media repository for Matrix. Versions 1.2.6 and earlier of matrix-media-repo do not properly handle malicious images which are crafted to be small in file size, but large in complexity. A malicious user could upload a relatively small image in terms of file size, using particular image formats, which expands to have extremely large dimensions during the process of thumbnailing. The server can be exhausted of memory in the process of trying to load the whole image into memory for thumbnailing, leading to denial of service. Version 1.2.7 has a fix for the vulnerability.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-04-19T18:55:13
Updated: 2024-08-03T22:02:51.980Z
Reserved: 2021-03-30T00:00:00
Link: CVE-2021-29453
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-04-19T19:15:17.717
Modified: 2022-08-03T10:18:44.937
Link: CVE-2021-29453
Redhat
No data.