SIPGO is a library for writing SIP services in the GO language. Starting in version 0.3.0 and prior to version 1.0.0-alpha-1, a nil pointer dereference vulnerability is in the SIPGO library's `NewResponseFromRequest` function that affects all normal SIP operations. The vulnerability allows remote attackers to crash any SIP application by sending a single malformed SIP request without a To header. The vulnerability occurs when SIP message parsing succeeds for a request missing the To header, but the response creation code assumes the To header exists without proper nil checks. This affects routine operations like call setup, authentication, and message handling - not just error cases. This vulnerability affects all SIP applications using the sipgo library, not just specific configurations or edge cases, as long as they make use of the `NewResponseFromRequest` function. Version 1.0.0-alpha-1 contains a patch for the issue.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-c623-f998-8hhv SIPGO is Vulnerable to Response DoS via Nil Pointer Dereference
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 21 Dec 2025 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Emiago
Emiago sipgo
Vendors & Products Emiago
Emiago sipgo

Wed, 17 Dec 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 16 Dec 2025 22:15:00 +0000

Type Values Removed Values Added
Description SIPGO is a library for writing SIP services in the GO language. Starting in version 0.3.0 and prior to version 1.0.0-alpha-1, a nil pointer dereference vulnerability is in the SIPGO library's `NewResponseFromRequest` function that affects all normal SIP operations. The vulnerability allows remote attackers to crash any SIP application by sending a single malformed SIP request without a To header. The vulnerability occurs when SIP message parsing succeeds for a request missing the To header, but the response creation code assumes the To header exists without proper nil checks. This affects routine operations like call setup, authentication, and message handling - not just error cases. This vulnerability affects all SIP applications using the sipgo library, not just specific configurations or edge cases, as long as they make use of the `NewResponseFromRequest` function. Version 1.0.0-alpha-1 contains a patch for the issue.
Title SIPGO library has response DoS vulnerability via nil pointer dereference
Weaknesses CWE-476
CWE-755
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-12-17T21:15:10.262Z

Reserved: 2025-12-16T14:05:31.364Z

Link: CVE-2025-68274

cve-icon Vulnrichment

Updated: 2025-12-17T21:15:03.461Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-16T22:15:50.830

Modified: 2025-12-18T15:08:06.237

Link: CVE-2025-68274

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-12-21T21:15:10Z

Weaknesses