SB2025020741 - Null pointer dereference in BIG-IP SIP ALG profile

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Main Vulnerability Database SB2025020741

SB2025020741 - Null pointer dereference in BIG-IP SIP ALG profile

Published: February 7, 2025

Security Bulletin ID SB2025020741
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2025-20045)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 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


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 update from vendor's website.

References