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Red Hat Bugzilla – Attachment 616925 Details for
Bug 860198
CVE-2012-4447 libtiff: Heap-buffer overflow when processing a TIFF image with PixarLog Compression
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[patch]
Upstream patch
libtiff-4.0.3-buffer-overflow-pixarlog.patch (text/plain), 728 bytes, created by
Huzaifa S. Sidhpurwala
on 2012-09-25 09:07:03 UTC
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Description:
Upstream patch
Filename:
MIME Type:
Creator:
Huzaifa S. Sidhpurwala
Created:
2012-09-25 09:07:03 UTC
Size:
728 bytes
patch
obsolete
>Index: tif_pixarlog.c >=================================================================== >RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_pixarlog.c,v >retrieving revision 1.36 >retrieving revision 1.38 >diff -u -r1.36 -r1.38 >--- tif_pixarlog.c 24 May 2012 05:25:14 -0000 1.36 >+++ tif_pixarlog.c 21 Jun 2012 01:01:53 -0000 1.38 >@@ -673,7 +673,7 @@ > td->td_rowsperstrip), sizeof(uint16)); > if (tbuf_size == 0) > return (0); /* TODO: this is an error return without error report through TIFFErrorExt */ >- sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size); >+ sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size+sizeof(uint16)*sp->stride); > if (sp->tbuf == NULL) > return (0); > if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN)
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