CyberRota Analysis
AI-GeneratedThe vulnerability arises from a race condition in the TIOCSCTTY ioctl handler, which improperly manages terminal state validation during lock acquisition. This flaw allows an unprivileged local user to potentially escalate their privileges by linking a terminal that is in the process of being destroyed to their session. Organizations with systems utilizing this ioctl handler should prioritize addressing this issue to mitigate the risk of local privilege escalation.
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
The TIOCSCTTY ioctl handler drops the tty lock in order to acquire the process tree lock. After reacquiring the tty lock, the handler did not revalidate the state of the terminal, and could proceed to link a terminal that was concurrently being destroyed to the calling process' session. An unprivileged local user can exploit this race condition to escalate privileges.