diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2005-01-08 14:21:33 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2005-01-08 14:21:33 +0000 |
| commit | 568e18b15e2ddf494fd8926707d34ca08c8edce5 (patch) | |
| tree | 18f59992848e24c529a01bd98aed66af3762b2d1 /libavformat/sgi.c | |
| parent | 934b0821dbb8fb33b2736fe4aab09fc2b6cc8ccc (diff) | |
| download | ffmpeg-568e18b15e2ddf494fd8926707d34ca08c8edce5.tar.gz | |
integer overflows, heap corruption
possible arbitrary code execution cannot be ruled out in some cases
precautionary checks
Originally committed as revision 3813 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/sgi.c')
| -rw-r--r-- | libavformat/sgi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/sgi.c b/libavformat/sgi.c index 13ca98e925..bbf700bc4f 100644 --- a/libavformat/sgi.c +++ b/libavformat/sgi.c @@ -65,6 +65,9 @@ static void read_sgi_header(ByteIOContext *f, SGIInfo *info) info->xsize = (unsigned short) get_be16(f); info->ysize = (unsigned short) get_be16(f); info->zsize = (unsigned short) get_be16(f); + + if(info->zsize > 4096) + info->zsize= 0; #ifdef DEBUG printf("sgi header fields:\n"); |