{"id":"CVE-2025-68274","aliases":["GHSA-c623-f998-8hhv","GO-2025-4244"],"url":"https://o3.security/vulnerability/CVE-2025-68274","summary":"SIPGO library has response DoS vulnerability via nil pointer dereference","details":"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.","published":"2025-12-16T22:02:55.360Z","modified":"2026-08-12T03:51:08.311774816Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/emiago/sipgo","fixedVersion":"1.0.0-alpha-1"}],"fix":{"url":"https://github.com/emiago/sipgo/commit/dc9669364a154ec6d134e542f6a63c31b5afe6e8","label":"emiago/sipgo@dc96693"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68274.json"},{"type":"ADVISORY","url":"https://github.com/emiago/sipgo/security/advisories/GHSA-c623-f998-8hhv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68274"},{"type":"FIX","url":"https://github.com/emiago/sipgo/commit/dc9669364a154ec6d134e542f6a63c31b5afe6e8"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:08.311774816Z"}}