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- Libpng 1.6.20 - December 3, 2015
- This is a public release of libpng, intended for use in production codes.
- Files available for download:
- Source files with LF line endings (for Unix/Linux) and with a
- "configure" script
- libpng-1.6.20.tar.xz (LZMA-compressed, recommended)
- libpng-1.6.20.tar.gz
- Source files with CRLF line endings (for Windows), without the
- "configure" script
- /scratch/glennrp/Libpng16/lpng1620.7z (LZMA-compressed, recommended)
- /scratch/glennrp/Libpng16/lpng1620.zip
- Other information:
- libpng-1.6.20-README.txt
- libpng-1.6.20-LICENSE.txt
- libpng-1.6.20-*.asc (armored detached GPG signatures)
- Changes since the last public release (1.6.19):
- Avoid potential pointer overflow/underflow in png_handle_sPLT() and
- png_handle_pCAL() (Bug report by John Regehr).
- 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.
- Backported tests from libpng-1.7.0beta69.
- Fixed an error in handling of bad zlib CMINFO field in pngfix, 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 PNG file cannot
- be fixed.
- In libpng 1.6 zlib initialization was changed to use the window size
- in the zlib stream, not a fixed value. This causes some invalid images,
- where CINFO is too large, to display 'correctly' if the rest of the
- data is valid. This provides a workaround for zlib versions where the
- error arises (ones that support the API change to use the window size
- in the stream).
- 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
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