VTE, as used by default in gnome-terminal terminal emulator 2.2 and as an option in gnome-terminal 2.0, allows attackers to modify the window title via a certain character escape sequence and then insert it back to the command line in the user's terminal, e.g. when the user views a file containing the malicious sequence, which could allow the attacker to execute arbitrary commands.

The vte_sequence_handler_window_manipulation function in vteseq.c in libvte (aka libvte9) in VTE 0.25.1 and earlier, as used in gnome-terminal, does not properly handle escape sequences, which allows remote attackers to execute arbitrary commands or obtain potentially sensitive information via a (1) window title or (2) icon title sequence. NOTE: this issue exists because of a CVE-2003-0070 regression.