In wallpaper.c in feh before v2.18.3, if a malicious client pretends to be the E17 window manager, it is possible to trigger an out-of-boundary heap write while receiving an IPC message. An integer overflow leads to a buffer overflow and/or a double free.
The product writes data past the end, or before the beginning, of the intended buffer.
Link | Tags |
---|---|
https://security.gentoo.org/glsa/201707-08 | vendor advisory |
https://feh.finalrewind.org/ | patch product |
http://www.securityfocus.com/bid/97689 | vdb entry third party advisory |
https://github.com/derf/feh/commit/f7a547b7ef8fc8ebdeaa4c28515c9d72e592fb6d | patch vendor advisory |
https://lists.debian.org/debian-lts-announce/2020/05/msg00021.html | mailing list |