Vulnerability · Published Mar 15, 2023 · Assigned by GitHub_M

CVE-2023-27596OpenSIPS has vulnerability in the codec_delete_XX() functions

High 7.5

In plain English

A high-severity resource allocation without limits 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 0.7% (higher than 55% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.7%top 45.3% 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. Prior to versions 3.1.8 and 3.2.5, OpenSIPS crashes when a malformed SDP body is sent multiple times to an OpenSIPS configuration that makes use of the `stream_process` function. This issue was discovered during coverage guided fuzzing of the function `codec_delete_except_re`. By abusing this vulnerability, an attacker is able to crash the server. It affects configurations containing functions that rely on the affected code, such as the function `codec_delete_except_re`. This issue has been fixed in version 3.1.8 and 3.2.5.

Affected products (as reported)

Vendor	Product	Versions
OpenSIPS	opensips	< 3.1.8>= 3.2.0, < 3.2.5

Weakness: CWE-770 · 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-3ghx-j39m-cw4f x_refsource_CONFIRM
https://github.com/OpenSIPS/opensips/commit/dd051f8ed5ae3347fb1d556ced3c97822c9d8450 x_refsource_MISC