CVE-2024-52791

Aliases:GHSA-gp86-q8hg-fpxjGO-2025-3398
Advisory lineage Upstream: 0 Downstream: 2
Analyzed
Published: 16 Jan 2025, 19:12
Last modified:12 Feb 2025, 20:31

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.1% LOW
0% probability -0.30%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Jan 2025, 19:12
Published
Vulnerability first disclosed
12 Feb 2025, 20:31
Last Modified
Vulnerability information updated

Description

Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR makes requests to other servers as part of normal operation, and these resource owners can return large amounts of JSON back to MMR for parsing. In parsing, MMR can consume large amounts of memory and exhaust available memory. This is fixed in MMR v1.3.8. Users are advised to upgrade. For users unable to upgrade; forward proxies can be configured to block requests to unsafe hosts. Alternatively, MMR processes can be configured with memory limits and auto-restart. Running multiple MMR processes concurrently can help ensure a restart does not overly impact users.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.10%• Percentile: 28%

Techniques & Countermeasures

  • CWE-789•Memory Allocation with Excessive Size Value

    The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

Affected Systems

  • github.com/t2bot•matrix-media-repo

    < 1.3.8

  • t2bot•matrix-media-repo

    < 1.3.8

References (5)