An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because there is an out-of-bounds read in xcb::xproto::change_property(), as demonstrated by a format32 Tu8 situation where out-of-bounds bytes are sent to an X server.
Publication date: Wed, 10 Feb 2021 05:15:00 +0000