Denial of service via unsigned underflow in libXpm's write path

{
                    "vendor": "x.org",
                    "product": "libXpm",
                    "packageName": "libXpm",
                    "repo": "https://gitlab.freedesktop.org/xorg/lib/libxpm",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "3.5.19",
                            "versionType": "rpm"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }