package-nopast/audio/libid3tag/libid3tag-0.15.1b-CVE-2008-2109.patch

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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2109

field.c in the libid3tag 0.15.0b library allows context-dependent attackers to
cause a denial of service (CPU consumption) via an ID3_FIELD_TYPE_STRINGLIST
field that ends in '\0', which triggers an infinite loop.

--- libid3tag-0.15.1b/field.c.orig	2011-06-02 22:29:39.028006695 +0200
+++ libid3tag-0.15.1b/field.c	2011-06-02 22:30:35.064005391 +0200
@@ -291,7 +291,7 @@
 
       end = *ptr + length;
 
-      while (end - *ptr > 0) {
+      while (end - *ptr > 0 && **ptr != '\0') {
 	ucs4 = id3_parse_string(ptr, end - *ptr, *encoding, 0);
 	if (ucs4 == 0)
 	  goto fail;