Upstream-Status: Inappropriate [bugfix: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-0624]
CVE: CVE-2010-0624

This patch avoids heap overflow reported by :
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-0624

This is a clean patch for the GPLv2 tar recipe.

the GPLv2 tar recipe patch is also applicable to this GPLv2 cpio 
recipe, as they share code.

Nitin A Kamble <nitin.a.kamble@intel.com> 2011/04/25

Index: tar-1.17/lib/rtapelib.c
===================================================================
--- tar-1.17.orig/lib/rtapelib.c
+++ tar-1.17/lib/rtapelib.c
@@ -570,7 +570,7 @@ rmt_read__ (int handle, char *buffer, si
 
   sprintf (command_buffer, "R%lu\n", (unsigned long) length);
   if (do_command (handle, command_buffer) == -1
-      || (status = get_status (handle)) == SAFE_READ_ERROR)
+      || ((status = get_status (handle)) == SAFE_READ_ERROR) || (status > length))
     return SAFE_READ_ERROR;
 
   for (counter = 0; counter < status; counter += rlen, buffer += rlen)