Improper Verification of Cryptographic Signature in Synapse - CVE-2018-16515
Published: May 17, 2023
Vulnerability identifier: #VU76260
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-16515
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exist due to improper signature validation. A remote attacker can spoof application events and compromise the application.
Affected software
Synapse
Ubuntu
Fedora
matrix-synapse (Ubuntu package)
matrix-synapse
Ubuntu
Fedora
matrix-synapse (Ubuntu package)
matrix-synapse
How to mitigate CVE-2018-16515
Install updates from vendor's website.
Synapse - update to 0.33.3.1
matrix-synapse (Ubuntu package) - update to Ubuntu Pro
matrix-synapse - addressed in versions 0.33.3.1-1.fc28, 0.33.3.1-1.fc29
matrix-synapse (Ubuntu package) - update to Ubuntu Pro
matrix-synapse - addressed in versions 0.33.3.1-1.fc28, 0.33.3.1-1.fc29