漏洞信息
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Vulnerability Title
PJSIP: Pre-authentication overflow in the telnet CLI error
Vulnerability Description
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 4472a31, a stack buffer overflow exists in the PJLIB-UTIL telnet CLI front-end when rendering feedback for an entered command line. Several command-line handling paths write an attacker-influenced amount of data into fixed-size buffers without sufficient bounds checking, so a long command line can overflow them. This affects only applications that enable the telnet CLI front-end (e.g. pj_cli_telnet_create() / --cli-telnet-port). The telnet CLI is an interactive administration interface with no authentication, so any client able to reach it can already issue arbitrary CLI commands. A malformed or overly long command line can overflow a fixed-size stack buffer while rendering command-line feedback, which may lead to application termination. Because reaching this code already requires access to the unauthenticated CLI, the impact beyond that existing access is limited. Applications that do not enable the telnet CLI front-end are not affected. This issue has been patched via commit 4472a31.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Vulnerability Type
栈缓冲区溢出
Vulnerability Title
PJSIP 缓冲区错误漏洞
Vulnerability Description
PJSIP是pjsip团队开源的一款支持多种协议的多媒体通信中间件。 PJSIP commit 4472a31之前版本存在缓冲区错误漏洞,该漏洞源于PJLIB-UTIL telnet CLI前端在渲染命令行反馈时未充分检查边界,畸形或超长命令行可导致固定大小栈缓冲区溢出,可能造成应用程序终止。该telnet CLI无需身份验证,任何可访问它的客户端均可触发该漏洞。
CVSS Information
N/A
Vulnerability Type
N/A