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openwrt-packages-dist/libs/tiff/patches/013-CVE-2013-4231.patch

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tiff: fix multiple CVE's This commit fixes multiple CVE's for library tiff: CVE-2012-4564 CVE-2013-1960 CVE-2013-1961 CVE-2013-4231 CVE-2013-4232 CVE-2013-4244 CVE-2013-4243 Signed-off-by: Jiri Slachta <slachta@cesnet.cz>
10 years ago
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  1. Description: Buffer overflow in gif2tiff
  2. Bug: http://bugzilla.maptools.org/show_bug.cgi?id=2450
  3. Bug-Debian: http://bugs.debian.org/719303
  4. 

  5. Index: tiff-4.0.3/tools/gif2tiff.c

  6. ===================================================================

  7. --- tiff-4.0.3.orig/tools/gif2tiff.c	2013-08-22 11:46:11.960846910 -0400

  8. +++ tiff-4.0.3/tools/gif2tiff.c	2013-08-22 11:46:11.956846910 -0400

  9. @@ -333,6 +333,8 @@

  10.      int status = 1;
  11.  
  12.      datasize = getc(infile);
  13. +    if (datasize > 12)

  14. +	return 0;

  15.      clear = 1 << datasize;
  16.      eoi = clear + 1;
  17.      avail = clear + 2;