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FreeBSD: VID-71F3E9F0-BAFC-11EF-885D-901B0E934D69 (CVE-2024-37302): py-matrix-synapse -- multiple vulnerabilities in versions prior to 1.120.1

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FreeBSD: VID-71F3E9F0-BAFC-11EF-885D-901B0E934D69 (CVE-2024-37302): py-matrix-synapse -- multiple vulnerabilities in versions prior to 1.120.1

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
12/03/2024
Created
12/19/2024
Added
12/18/2024
Modified
12/18/2024

Description

Synapse is an open-source Matrix homeserver. Synapse versions before 1.106 are vulnerable to a disk fill attack, where an unauthenticated adversary can induce Synapse to download and cache large amounts of remote media. The default rate limit strategy is insufficient to mitigate this. This can lead to a denial of service, ranging from further media uploads/downloads failing to completely unavailability of the Synapse process, depending on how Synapse was deployed. Synapse 1.106 introduces a new "leaky bucket" rate limit on remote media downloads to reduce the amount of data a user can request at a time. This does not fully address the issue, but does limit an unauthenticated user's ability to request large amounts of data to be cached.

Solution(s)

  • freebsd-upgrade-package-py310-matrix-synapse
  • freebsd-upgrade-package-py311-matrix-synapse
  • freebsd-upgrade-package-py38-matrix-synapse
  • freebsd-upgrade-package-py39-matrix-synapse

References

  • CVE-2024-37302
  • 查看数 699
  • 已创建
  • 最后回复

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