漏洞信息
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Vulnerability Title
OpenSIPS: Denial of service in presence.handle_publish() from unchecked Content-Type state
Vulnerability Description
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions 3.4.0 through 3.6.5 contain a denial of service vulnerability in the presence module. When the presence module's handle_publish() function processes a SIP PUBLISH request with an Event: presence header and a message body while the configuration option enable_sphere_check=1 is set, it invokes the get_content_type() macro without first calling parse_content_type_hdr(), causing it to dereference uninitialized or NULL Content-Type parsing state and crash. If a Content-Type header is present but unparsed, msg->content_type->parsed is NULL and is dereferenced as a content_t pointer; if the request lacks a Content-Type header entirely, msg->content_type itself is NULL, and both cases lead to a crash. A remote attacker can therefore cause a denial of service against an affected instance with a single PUBLISH request over UDP or TCP, using either a valid Content-Type: application/pidf+xml request or one with the header removed, and the vulnerable code path itself does not enforce authentication (though a deployment's routing configuration may require it before this route is reached). The issue has been fixed in version 3.6.6 and 4.0.0-rc1.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
空指针解引用
Vulnerability Title
OpenSIPS 异常处理不当漏洞
Vulnerability Description
OpenSIPS是OpenSIPS组织开源的一个 GPL 许可的 SIP 服务器实现。 OpenSIPS 3.4.0版本至3.6.5版本存在异常处理不当漏洞,该漏洞源于presence模块的handle_publish()函数在处理带有Event: presence标头和消息体的SIP PUBLISH请求且配置enable_sphere_check=1时,未先调用parse_content_type_hdr()便调用get_content_type()宏,导致取消引用未初始化或NULL的Content-T
CVSS Information
N/A
Vulnerability Type
N/A