#VU103724 NULL pointer dereference in BIG-IP - CVE-2025-20045
Published: February 7, 2025
Vulnerability identifier: #VU103724
Vulnerability risk: Medium
CVSSv4.0: 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-2025-20045
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
BIG-IP
BIG-IP
Software vendor:
F5 Networks
F5 Networks
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when the Session Initiation Protocol (SIP) application layer gateway (ALG) profile with Passthru Mode enabled and the SIP router ALG profile are configured on a Message Routing type virtual server. A remote attacker can send specially crafted traffic to the device and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.