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Red Hat Bugzilla – Attachment 313969 Details for
Bug 458674
CVE-2008-2327 libtiff: use of uninitialized memory in LZW decoder
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[patch]
Patch proposed by Drew Yao
tif_lzw.c.diff (text/plain), 672 bytes, created by
Tomas Hoger
on 2008-08-11 14:27:10 UTC
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Description:
Patch proposed by Drew Yao
Filename:
MIME Type:
Creator:
Tomas Hoger
Created:
2008-08-11 14:27:10 UTC
Size:
672 bytes
patch
obsolete
>--- tif_lzw.c.old 2008-08-06 09:54:00.000000000 -0700 >+++ tif_lzw.c 2008-08-06 09:55:53.000000000 -0700 >@@ -408,6 +408,7 @@ > break; > if (code == CODE_CLEAR) { > free_entp = sp->dec_codetab + CODE_FIRST; >+ _TIFFmemset(free_entp, 0, (CSIZE-CODE_FIRST)*sizeof (code_t)); > nbits = BITS_MIN; > nbitsmask = MAXCODE(BITS_MIN); > maxcodep = sp->dec_codetab + nbitsmask-1; >@@ -604,6 +605,7 @@ > break; > if (code == CODE_CLEAR) { > free_entp = sp->dec_codetab + CODE_FIRST; >+ _TIFFmemset(free_entp, 0, (CSIZE-CODE_FIRST)*sizeof (code_t)); > nbits = BITS_MIN; > nbitsmask = MAXCODE(BITS_MIN); > maxcodep = sp->dec_codetab + nbitsmask;
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