SB2018061416 - Fedora 28 update for matrix-synapse, python-prometheus_client
Published: June 14, 2018 Updated: April 24, 2025
Security Bulletin ID
SB2018061416
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2018-12291)
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists in the on_get_missing_events function in handlers/federation.py due to event visibility rules were not applied correctly. A remote unauthenticated attacker can bypass security restrictions and conduct further attacks.
Remediation
Install update from vendor's website.