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

Quick assessment

Affected
OpenSIPS opensips
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenSIPS是OpenSIPS 个人开发者的一个 GPL 许可的 SIP 服务器实现。 OpenSIPS 3.1.8 和 3.2.5 之前版本存在安全漏洞，该漏洞源于当格式错误的 SDP 主体被多次发送到使用“stream_process”函数的 OpenSIPS configuration时，OpenSIPS 会崩溃。

CVSS 7.5 · High EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service
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I. Basic Information for CVE-2023-27596

Vulnerability Information
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Vulnerability Title
OpenSIPS has vulnerability in the codec_delete_XX() functions
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
OpenSIPS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenSIPS是OpenSIPS 个人开发者的一个 GPL 许可的 SIP 服务器实现。 OpenSIPS 3.1.8 和 3.2.5 之前版本存在安全漏洞，该漏洞源于当格式错误的 SDP 主体被多次发送到使用“stream_process”函数的 OpenSIPS configuration时，OpenSIPS 会崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenSIPS opensips < 3.1.8 -

II. Public POCs for CVE-2023-27596

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III. Intelligence Information for CVE-2023-27596

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Patches & Fixes for CVE-2023-27596 (1)

Vendor Advisories for CVE-2023-27596 (1)

Same Patch Batch · OpenSIPS · 2023-03-15 · 11 CVEs total

CVE-2023-27597 7.5 HIGH OpenSIPS has vulnerability in the parse_uri() function
CVE-2023-27598 7.5 HIGH OpenSIPS has vulnerability in the parse_via() function
CVE-2023-27599 7.5 HIGH OpenSIPS has vulnerability in the parse_to_param() function
CVE-2023-27600 7.5 HIGH OpenSIPS has vulnerability in the codec_delete_XX() functions
CVE-2023-27601 7.5 HIGH OpenSIPS has vulnerability in the codec_delete_XX() functions
CVE-2023-28095 7.5 HIGH OpenSIPS has vulnerability in the building the local negative replies
CVE-2023-28097 7.5 HIGH OpenSIPS has vulnerability in the Content-Length Parser
CVE-2023-28098 5.9 MEDIUM OpenSIPS has vulnerability in the Digest Authentication Parser
CVE-2023-28099 5.9 MEDIUM OpenSIPS has vulnerability in the ds_is_in_list() function
CVE-2023-28096 4.5 MEDIUM OpenSIPS has memory leak in cJSON lib

IV. Related Vulnerabilities

Same product: opensips
Same vendor: OpenSIPS
Same weakness: CWE-770

V. Comments for CVE-2023-27596

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