SB2024120477 - Fedora 40 update for matrix-synapse

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Main Vulnerability Database SB2024120477

SB2024120477 - Fedora 40 update for matrix-synapse

Published: December 4, 2024

Security Bulletin ID SB2024120477
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2024-52805)

CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to allocation of resources without limits or throttling in multipart/form-data request handling when processing unsupported multipart/form-data requests. A remote attacker can send a specially crafted request to cause a denial of service.

Only certain configurations are vulnerable, and memory consumption may transiently increase beyond expected levels while the request is being processed.


2) Input validation error (CVE-ID: CVE-2024-52815)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in invite validation over federation when processing invites received over federation. A remote attacker can send a specially crafted invite to cause a denial of service.

The issue can disrupt the invited user's /sync functionality.


3) Interpretation Conflict (CVE-ID: CVE-2024-53863)

CWE-ID: CWE-436 - Interpretation Conflict

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to invoke potentially untrustworthy decoders.

The vulnerability exists due to improper restriction of processed file formats in thumbnail generation when processing a specially crafted request. A remote attacker can send a specially crafted request to invoke potentially untrustworthy decoders.

Instances with the dynamic_thumbnails option enabled are affected.


Remediation

Install update from vendor's website.

References