CVE-2023-27598

Katalog CVE

CVSS 7.5 · High EPSS 0,97%

Kerentanan Use of Uninitialized Resource pada opensips. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Prior to versions 3.1.7 and 3.2.4, sending a malformed `Via` header to OpenSIPS triggers a segmentation fault when the function `calc_tag_suffix` is called. A specially crafted `Via` header, which is deemed correct by the parser, will pass uninitialized strings to the function `MD5StringArray` which leads to the crash. Abuse of this vulnerability leads to Denial of Service due to a crash. Since the uninitialized string points to memory location `0x0`, no further exploitation appears to be possible. No special network privileges are required to perform this attack, as long as the OpenSIPS configuration makes use of functions such as `sl_send_reply` or `sl_gen_totag` that trigger the vulnerable code. This issue has been fixed in versions 3.1.7 and 3.2.4.

Rincian

Terbit di NVD

15 Maret 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-908: Use of Uninitialized Resource

EPSS (30 hari)

0,97% peluang dieksploitasi; lebih tinggi dari 60,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/OpenSIPS/opensips/commit/ab611f74f69d9c42be5401c40d56ea06a58f5dd7 patch · advisory pihak ketiga
• https://github.com/OpenSIPS/opensips/security/advisories/GHSA-wxfg-3gwh-rhvx advisory pihak ketiga
• https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf advisory pihak ketiga