漏洞信息
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Vulnerability Title
PJSIP: Pre-authentication overflow in the telnet CLI history
Vulnerability Description
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 628b716, a stack buffer overflow exists in the PJLIB-UTIL telnet CLI front-end when redrawing the command line during history recall (handle_up_down() in cli_telnet.c). This affects only applications that enable the telnet CLI front-end (same gating as the related CLI issue). The line-redraw sequence for a recalled history entry can accumulate more data than a fixed-size stack buffer holds, which may lead to application termination. Exploitation requires access to the unauthenticated telnet CLI, which already permits arbitrary CLI commands, so the additional impact is limited. Applications that do not enable the telnet CLI front-end are not affected. This issue has been patched via commit 628b716.
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 628b716之前版本存在缓冲区错误漏洞,该漏洞源于PJLIB-UTIL telnet CLI前端在历史命令回溯重绘命令行时存在栈缓冲区溢出,可能导致应用程序终止。利用该漏洞需要访问未经身份验证的telnet CLI,额外影响有限。
CVSS Information
N/A
Vulnerability Type
N/A