File CVE-2017-14502.patch of Package libarchive.9866

commit 5562545b5562f6d12a4ef991fae158bf4ccf92b6
Author: Joerg Sonnenberger <joerg@bec.de>
Date:   Sat Sep 9 17:47:32 2017 +0200

    Avoid a read off-by-one error for UTF16 names in RAR archives.
    
    Reported-By: OSS-Fuzz issue 573

diff --git a/libarchive/archive_read_support_format_rar.c b/libarchive/archive_read_support_format_rar.c
index cbb14c32..751de697 100644
--- a/libarchive/archive_read_support_format_rar.c
+++ b/libarchive/archive_read_support_format_rar.c
@@ -1496,7 +1496,11 @@ read_header(struct archive_read *a, struct archive_entry *entry,
         return (ARCHIVE_FATAL);
       }
       filename[filename_size++] = '\0';
-      filename[filename_size++] = '\0';
+      /*
+       * Do not increment filename_size here as the computations below
+       * add the space for the terminating NUL explicitly.
+       */
+      filename[filename_size] = '\0';
 
       /* Decoded unicode form is UTF-16BE, so we have to update a string
        * conversion object for it. */