Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The Open Phone Abstraction Library (opal), as used by (1) Ekiga before 2.0.10 and (2) OpenH323 before 2.2.4, allows remote attackers to cause a denial of service (crash) via an invalid Content-Length header field in Session Initiation Protocol (SIP) packets, which causes a \0 byte to be written to an "attacker-controlled address."
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
OpenH323 Opal库SIP协议远程拒绝服务漏洞
Vulnerability Description
Openh323是为开发使用H.323协议在IP网上进行多媒体通信的应用程序而专门设计的全功能协议栈。 Openh323的实现在处理畸形格式的SIP报文时存在漏洞，远程攻击者可能利用此漏洞导致用户的系统崩溃。 OpenH323所使用的opal库的sip/sippdu.cxx文件中SIP_PDU::Read()方式没有正确地处理SIP报文头中的Content-Length字段，如果远程攻击者向使用了该库的应用程序发送了畸形的SIP报文的话，就可能向任意内存位置写入"\0"字节，导致拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A