Libpng 1.6.20rc01 - November 26, 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. Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script 1.6.20rc01.tar.xz (LZMA-compressed, recommended) 1.6.20rc01.tar.gz Source files with CRLF line endings (for Windows), without the "configure" script lp1620r01.7z (LZMA-compressed, recommended) lp1620r01.zip Other information: 1.6.20rc01-README.txt 1.6.20rc01-LICENSE.txt libpng-1.6.20rc01-*.asc (armored detached GPG signatures) Changes since the last public release (1.6.19): Version 1.6.20beta01 [November 20, 2015] Avoid potential pointer overflow/underflow in png_handle_sPLT() and png_handle_pCAL() (Bug report by John Regehr). Version 1.6.20beta02 [November 23, 2015] Fixed incorrect implementation of png_set_PLTE() that uses png_ptr not info_ptr, that left png_set_PLTE() open to the CVE-2015-8126 vulnerability. Version 1.6.20beta03 [November 26, 2015] Backported tests from libpng-1.7.0beta69. Version 1.6.20rc01 [November 26, 2015] Fixed an error in handling of bad zlib CMINFO field, found by American Fuzzy Lop, reported by Brian Carpenter. inflate() doesn't immediately fault a bad CMINFO field; instead a 'too far back' error happens later (at least some times). pngfix failed to limit CMINFO to the allowed values but then assumed that window_bits was in range, triggering an assert. The bug is mostly harmless; the file can't be fixed. Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement to subscribe) or to glennrp at users.sourceforge.net Glenn R-P