| 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 |
