SB2023101502 - Fedora 37 update for matrix-synapse
Published: October 15, 2023
Security Bulletin ID
SB2023101502
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2023-45129)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to improper input validation in server ACL event handling when processing malicious server ACL events. A remote privileged user can send a malicious server ACL event to cause a denial of service.
Homeservers running on a closed federation are not affected.
Remediation
Install update from vendor's website.