CyberRota Analysis
AI-GeneratedThe vulnerability exists in the PJLIB-UTIL telnet CLI front-end of the PJSIP multimedia communication library, where insufficient bounds checking allows for a stack buffer overflow when processing overly long command lines. This can lead to application termination but primarily affects systems with the telnet CLI enabled, as it is an unauthenticated interface accessible to any client on the network. Organizations using PJSIP with the telnet CLI front-end should prioritize applying the patch to mitigate potential disruptions.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD 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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)