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VuXML IDDescription
278561d7-b261-11eb-b788-901b0e934d69py-matrix-synapse -- malicious push rules may be used for a denial of service attack.

Matrix developers report:

"Push rules" can specify conditions under which they will match, including event_match, which matches event content against a pattern including wildcards. Certain patterns can cause very poor performance in the matching engine, leading to a denial-of-service when processing moderate length events.


Discovery 2021-05-11
Entry 2021-05-11
py36-matrix-synapse
py37-matrix-synapse
py38-matrix-synapse
py39-matrix-synapse
lt 1.33.2

CVE-2021-29471
https://github.com/matrix-org/synapse/security/advisories/GHSA-x345-32rc-8h85