CVE-2018-12291

matrix-synapse: The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in th...

CVE-2018-12291 is fixed in matrix-synapse on 1 platform by matrix-synapse 0.24.0+dfsg-1ubuntu0.1~esm1 (version 0.24.0+dfsg-1ubuntu0.1~esm1), released November 7, 2019. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0179
78th percentile

The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.

Where it's fixed

ProductFixed inFixReleased
Linux
matrix-synapse · Ubuntu 18.04.6 LTS (bionic) 0.24.0+dfsg-1ubuntu0.1~esm1 matrix-synapse 0.24.0+dfsg-1ubuntu0.1~esm1 Nov 7, 2019

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