libXpm: Runaway loop on width of 0 and enormous height

A flaw was found in libXpm. When processing a file with width of 0 and a very large height, some parser functions will be called repeatedly and can lead to an infinite loop, resulting in a Denial of Service in the application linked to the library...

libXpm -- Issues handling XPM files

The X.Org project reports: CVE-2022-46285: Infinite loop on unclosed comments When reading XPM images from a file with libXpm 3.5.14 or older, if a comment in the file is not closed i.e. a C-style comment starts with "/" and is missing the closing "/", the ParseComment function will loop forever...