Kitty is a cross-platform GPU based terminal. Prior to 0.48.2, the @kitty-echo and @kitty-ssh DCS handlers in kitty/window.py write unauthenticated data to the child shell's stdin, where handle_remote_echo accepts printable shell command characters and handle_remote_ssh calls get_ssh_data in kittens/ssh/utils.py, which emits a newline; chaining the handlers can execute attacker-controlled commands when a user displays untrusted terminal data. This issue is fixed in version 0.48.2.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
kovidgoyal:kitty
References 4
https://github.com/kovidgoyal/kitty/security/advisories/GHSA-ccp2-q4v6-rw94
https://github.com/kovidgoyal/kitty/security/advisories/GHSA-ccp2-q4v6-rw94
https://github.com/kovidgoyal/kitty/commit/9dca948e9bec3c926ab3370f2cd10f9b9b10…
https://github.com/kovidgoyal/kitty/commit/9dca948e9bec3c926ab3370f2cd10f9b9b10821f
https://github.com/kovidgoyal/kitty/releases/tag/v0.48.2
https://github.com/kovidgoyal/kitty/releases/tag/v0.48.2
https://sw.kovidgoyal.net/kitty/changelog/#id1
https://sw.kovidgoyal.net/kitty/changelog/#id1