commit bbc843f0b84aac9f02d56ddfb2b28ba0edbf9bbe
author Paul Bakker <p.j.bakker@polarssl.org> Tue Jul 08 18:18:38 2014 +0200
committer Paul Bakker <p.j.bakker@polarssl.org> Tue Jul 08 18:29:06 2014 +0200
tree 7c7f5f462ed8cabecb158a2c6084aba60895914e
parent ff9e1a4aa41a8a08feb4d0815ca17ea07d9c5cfc

Fix base64_decode() to return and check length correctly

ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 03c7e31..ded66e6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -67,6 +67,8 @@
    * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
      interpret semicolons as comment delimiters (found by Barry K. Nathan).
    * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
+   * Fix base64_decode() to return and check length correctly (in case of
+     tight buffers)
 
 = Version 1.2.10 released 2013-10-07
 Changes

library/base64.c

diff --git a/library/base64.c b/library/base64.c
index 06305bb..1364713 100644
--- a/library/base64.c
+++ b/library/base64.c
@@ -162,6 +162,7 @@
         return( 0 );
 
     n = ((n * 6) + 7) >> 3;
+    n -= j;
 
     if( *dlen < n )
     {