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openwrt-packages-dist/libs/tiff/patches/015-CVE-2013-4244.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: OOB write in gif2tiff
  2. Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=996468
  3. 

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

  5. ===================================================================

  6. --- tiff-4.0.3.orig/tools/gif2tiff.c	2013-08-24 11:17:13.546447901 -0400

  7. +++ tiff-4.0.3/tools/gif2tiff.c	2013-08-24 11:17:13.546447901 -0400

  8. @@ -400,6 +400,10 @@

  9.      }
  10.  
  11.      if (oldcode == -1) {
  12. +        if (code >= clear) {

  13. +            fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear);

  14. +            return 0;

  15. +        }

  16.  	*(*fill)++ = suffix[code];
  17.  	firstchar = oldcode = code;
  18.  	return 1;