parent
d3842962c9
commit
af26964030
@ -1 +1,2 @@
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libpng-1.4.3.tar.bz2
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libpng-1.4.3.tar.bz2
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/libpng-1.4.8.tar.xz
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@ -1,49 +0,0 @@
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Patch from:
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http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=65e6d5a34f49acdb362a0625a706c6b914e670af
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to fix:
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https://bugzilla.redhat.com/show_bug.cgi?id=717510
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https://bugzilla.redhat.com/show_bug.cgi?id=717511
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CVE-2011-2501
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I have modified this patch to remove the changes to ANNOUNCE
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and CHANGES files, and the hunk in pngerror.c which just updates
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a comment.
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- RWMJ.
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From 65e6d5a34f49acdb362a0625a706c6b914e670af Mon Sep 17 00:00:00 2001
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From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
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Date: Tue, 7 Jun 2011 14:58:07 -0500
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Subject: [PATCH] [master] Fixed 1-byte uninitialized memory reference in png_format_buffer()
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(Bug report by Frank Busse, related to CVE-2004-0421).
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---
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ANNOUNCE | 6 ++++--
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CHANGES | 4 +++-
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pngerror.c | 11 ++++++++---
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3 files changed, 15 insertions(+), 6 deletions(-)
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--- a/pngerror.c
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+++ b/pngerror.c
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@@ -186,8 +186,13 @@ png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp
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{
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buffer[iout++] = ':';
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buffer[iout++] = ' ';
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- png_memcpy(buffer + iout, error_message, PNG_MAX_ERROR_TEXT);
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- buffer[iout + PNG_MAX_ERROR_TEXT - 1] = '\0';
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+
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+ iin = 0;
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+ while (iin < PNG_MAX_ERROR_TEXT-1 && error_message[iin] != '\0')
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+ buffer[iout++] = error_message[iin++];
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+
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+ /* iin < PNG_MAX_ERROR_TEXT, so the following is safe: */
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+ buffer[iout] = '\0';
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}
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}
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--
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1.7.0.1
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