1 files changed, 47 insertions, 0 deletions
diff --git a/archivers/unarj/files/patch-00-over-unarj.c b/archivers/unarj/files/patch-00-over-unarj.c
new file mode 100644
index 000000000000..3a9426f21932
--- /dev/null
+++ b/archivers/unarj/files/patch-00-over-unarj.c
@@ -0,0 +1,47 @@
+--- unarj-2.65.orig/unarj.c
++++ unarj.c
+@@ -217,7 +217,7 @@ static uchar  arj_flags;
+ static short  method;
+ static uint   file_mode;
+ static ulong  time_stamp;
+-static short  entry_pos;
++static ushort entry_pos;
+ static ushort host_data;
+ static uchar  *get_ptr;
+ static UCRC   file_crc;
+@@ -608,6 +608,7 @@ char *name;
+         error(M_BADHEADR, "");
+ 
+     crc = CRC_MASK;
++    memset(header, 0, sizeof(header));
+     fread_crc(header, (int) headersize, fd);
+     header_crc = fget_crc(fd);
+     if ((crc ^ CRC_MASK) != header_crc)
+@@ -632,9 +633,13 @@ char *name;
+ 
+     if (origsize < 0 || compsize < 0)
+         error(M_HEADRCRC, "");
++    if(first_hdr_size > headersize-2) /* need two \0 for file and comment */
++        error(M_BADHEADR, "");
+ 
+     hdr_filename = (char *)&header[first_hdr_size];
+     strncopy(filename, hdr_filename, sizeof(filename));
++    if(entry_pos >= strlen(filename))
++        error(M_BADHEADR, "");
+     if (host_os != OS)
+         strparity((uchar *)filename);
+     if ((arj_flags & PATHSYM_FLAG) != 0)
+@@ -733,11 +738,11 @@ extract()
+ 
+     no_output = 0;
+     if (command == 'E')
+-        strcpy(name, &filename[entry_pos]);
++        strncopy(name, &filename[entry_pos], sizeof(name));
+     else
+     {
+         strcpy(name, DEFAULT_DIR);
+-        strcat(name, filename);
++        strncopy(name+strlen(name), filename, sizeof(name)-strlen(name));
+     }
+ 
+     if (host_os != OS)