From e7b43e8e84e48fccf64cdc62430cb8b5c69e804c Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 2 Mar 2012 21:36:42 +0100 Subject: [PATCH] truemotion1: Check input buffer size against header size. Fixes overread. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/truemotion1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c index ccebef5495..767eced913 100644 --- a/libavcodec/truemotion1.c +++ b/libavcodec/truemotion1.c @@ -314,7 +314,7 @@ static int truemotion1_decode_header(TrueMotion1Context *s) const uint8_t *sel_vector_table; header.header_size = ((s->buf[0] >> 5) | (s->buf[0] << 3)) & 0x7f; - if (s->buf[0] < 0x10) + if (s->buf[0] < 0x10 || header.header_size >= s->size) { av_log(s->avctx, AV_LOG_ERROR, "invalid header size (%d)\n", s->buf[0]); return -1;