Vulnerability · Published Mar 15, 2023 · Assigned by GitHub_M

CVE-2023-28095OpenSIPS has vulnerability in the building the local negative replies

High 7.5

In plain English

A high-severity improper input validation in opensips from OpenSIPS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.0%top 38.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions prior to 3.1.7 and 3.2.4 have a potential issue in `msg_translator.c:2628` which might lead to a server crash. This issue was found while fuzzing the function `build_res_buf_from_sip_req` but could not be reproduced against a running instance of OpenSIPS. This issue could not be exploited against a running instance of OpenSIPS since no public function was found to make use of this vulnerable code. Even in the case of exploitation through unknown vectors, it is highly unlikely that this issue would lead to anything other than Denial of Service. This issue has been fixed in versions 3.1.7 and 3.2.4.

Affected products (as reported)

Vendor	Product	Versions
OpenSIPS	opensips	< 3.1.7>= 3.2.0, < 3.2.4

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/OpenSIPS/opensips/security/advisories/GHSA-7pf3-24qg-8v9h x_refsource_CONFIRM
https://github.com/OpenSIPS/opensips/commit/9cf3dd3398719dd91207495f76d7726701c5145c x_refsource_MISC
https://opensips.org/pub/audit-2022/opensips-audit-technical-report-full.pdf x_refsource_MISC