[FFmpeg-devel] [PATCH 4/6] Fixed invalid read access on extra data in cinepak decoder.
fenrir at elivagar.org
fenrir at elivagar.org
Sun Sep 11 19:17:43 CEST 2011
From: Laurent Aimar <fenrir at videolan.org>
---
libavcodec/cinepak.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/libavcodec/cinepak.c b/libavcodec/cinepak.c
index d2e0c26..5a1ccd8 100644
--- a/libavcodec/cinepak.c
+++ b/libavcodec/cinepak.c
@@ -336,7 +336,8 @@ static int cinepak_decode (CinepakContext *s)
* If the frame header is followed by the bytes FE 00 00 06 00 00 then
* this is probably one of the two known files that have 6 extra bytes
* after the frame header. Else, assume 2 extra bytes. */
- if ((s->data[10] == 0xFE) &&
+ if (s->size >= 16 &&
+ (s->data[10] == 0xFE) &&
(s->data[11] == 0x00) &&
(s->data[12] == 0x00) &&
(s->data[13] == 0x06) &&
--
1.7.2.5
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