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[libpng17] Removed a redundant new check in png_handle_pCAL().

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Glenn Randers-Pehrson 2015-11-17 16:14:35 -06:00
parent 801608f8f4
commit d3c0359b23
3 changed files with 6 additions and 6 deletions
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6
ANNOUNCE
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@ -1,5 +1,5 @@
Libpng 1.7.0beta69 - November 14, 2015
Libpng 1.7.0beta69 - November 17, 2015
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -965,8 +965,8 @@ Version 1.7.0beta68 [November 12, 2015]
(bug report by Cosmin Truta).
Cleaned up coding style in png_handle_PLTE().
Version 1.7.0beta69 [November 14, 2015]
Avoid potential pointer overflow in png_handle_sPLT() and
Version 1.7.0beta69 [November 17, 2015]
Avoid potential pointer overflow/underflow in png_handle_sPLT() and
png_handle_pCAL() (Bug report by John Regehr).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net

4
CHANGES
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@ -5264,8 +5264,8 @@ Version 1.7.0beta68 [November 12, 2015]
(bug report by Cosmin Truta) (CVE-2015-8126).
Cleaned up coding style in png_handle_PLTE().
Version 1.7.0beta69 [November 14, 2015]
Avoid potential pointer overflow in png_handle_sPLT() and
Version 1.7.0beta69 [November 17, 2015]
Avoid potential pointer overflow/underflow in png_handle_sPLT() and
png_handle_pCAL() (Bug report by John Regehr).
Send comments/corrections/commendations to png-mng-implement at lists.sf.net

2
pngrutil.c
View File

@ -1948,7 +1948,7 @@ png_handle_pCAL(png_structrp png_ptr, png_inforp info_ptr)
/* We need to have at least 12 bytes after the purpose string
* in order to get the parameter information.
*/
if (png_ptr->chunk_length < 12 || endptr - buf <= 12)
if (endptr - buf <= 12)
{
png_chunk_benign_error(png_ptr, "invalid");
return;