PT-2018-11098 · Matrix+3 · Matrix Synapse+3
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
Matrix Synapse versions prior to 0.31.1
Description
The issue concerns a security bug in the get missing events federation API, specifically in the
on get missing events function, where event visibility rules were not applied correctly.Recommendations
For versions prior to 0.31.1, update to version 0.31.1 or later to resolve the issue.
As a temporary workaround, consider restricting access to the
on get missing events function in handlers/federation.py until a patch is available.Fix
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Related Identifiers
Affected Products
Alt Linux
Matrix Synapse
Suse
Ubuntu