Out-of-bounds write in freeswitch - CVE-2023-40018
Published: September 13, 2023 / Updated: May 15, 2026
Vulnerability identifier: #VU131564
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-40018
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: www.freeswitch.org
Affected software:
freeswitch
freeswitch
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to out-of-bounds write in ICE candidate handling when processing an SDP offer containing an ICE candidate with an unknown component ID. A remote attacker can send a specially crafted SDP offer to cause a denial of service.
The issue can corrupt memory and lead to undefined behavior.
How to mitigate CVE-2023-40018
Install security update from vendor's website.