dovecot-2.2: lib: Fixed read buffer overflow in istream-base64-d...

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.2/rev/c65b4c41698c
changeset: 17506:c65b4c41698c
user:      Timo Sirainen <tss at iki.fi>
date:      Thu Jun 19 12:32:45 2014 +0300
description:
lib: Fixed read buffer overflow in istream-base64-decoder error handling

diffstat:

 src/lib/istream-base64-decoder.c |  2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diffs (12 lines):

diff -r 07456a200816 -r c65b4c41698c src/lib/istream-base64-decoder.c
--- a/src/lib/istream-base64-decoder.c	Thu Jun 19 12:31:55 2014 +0300
+++ b/src/lib/istream-base64-decoder.c	Thu Jun 19 12:32:45 2014 +0300
@@ -61,7 +61,7 @@
 	if (base64_decode(data, size, &pos, &buf) < 0) {
 		io_stream_set_error(&stream->iostream,
 			"Invalid base64 data: 0x%s",
-			binary_to_hex(data+pos, I_MAX(size-pos, 8)));
+			binary_to_hex(data+pos, I_MIN(size-pos, 8)));
 		stream->istream.stream_errno = EINVAL;
 		return -1;
 	}