Upstream information

CVE-2018-12291 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
CVSSv3 Version 3
SUSE Bugzilla entry: 1096833 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 15.0
  • python2-matrix-synapse >= 0.28.1-lp150.2.4.1
  • python3-matrix-synapse >= 0.28.1-lp150.2.4.1
 Patchnames:
openSUSE-2019-475
openSUSE Tumbleweed
  • matrix-synapse >= 1.43.0-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-11041

SUSE Timeline for this CVE

CVE page created: Wed Jun 13 15:34:07 2018
CVE page last modified: Sat Nov 1 21:09:27 2025