XINE format string bugs when handling non existen file
Author : KaDaL-X
email : king_purba@xxxxxxxxxxx
website : http://kandangjamur.net
Software tested
Version : 0.99.4
Vendor : http://xine.sourceforge.net
Proof Of Concept :
Type in your unix console something like this :
kandangjamur$xine %p-%p.mp3
Then, there are two error alert box causing by this command :
1. There is no input pluggin available to handle
2. The specified file or mrl Plese check it twice (0x811ac8e-0xbe1fdabc.mp3)
<-- format string error
Vulnerable code :
In src/xitk/main.c
/* (file name or mrl) */
case XINE_MSG_FILE_NOT_FOUND:
snprintf(buffer, sizeof(buffer), "%s", _("The specified file or mrl is
not found. Please check it twic
e."));
if(data->explanation)
sprintf(buffer, "%s (%s)", buffer, (char *) data + data->parameters);
break;
The vulnerable variable is (char *) data + data->parameters, but i don't
analyze this code to make clear
this problem (sorry). By giving comment in sprintf() function can be used to
fix this issue,
but many format string issue may be happen on file main.c causing by (char *)
data + data->parameters