Package: libtiff6
Version: 4.7.0-3+deb13u3
Severity: important
Tags: patch upstream

libtiff 4.7.0 introduced a regression which causes it to fail in
combination with ignore-tags, e.g. when used with ImageMagick's
"-define tiff:ignore-tags" parameter.

The problem has been reported upstream (for example in issues #532 and 
#706) and has been fixed in merge request #668. Since this also affects 
Debian Stable I would ask you to add the patch to Debian's libtiff6 
package.

Relevant upstream issues:

 - Issue: "Tiff image conversion with magick no longer works with
   tiff:ignore-tags"
   https://gitlab.com/libtiff/libtiff/-/work_items/532

 - Issue: "TIFFMergeFieldInfo can no longer be used to ignore tags"
   https://gitlab.com/libtiff/libtiff/-/work_items/706

 - Merge Request: "Updating TIFFMergeFieldInfo() with read_count=write_
   count=0 for FIELD_IGNORE."
   https://gitlab.com/libtiff/libtiff/-/merge_requests/668


-- System Information:
Debian Release: 13.7
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.107+deb13-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not
set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libtiff6 depends on:
ii  libc6            2.41-12+deb13u4
ii  libdeflate0      1.23-2
ii  libjbig0         2.1-6.1+b2
ii  libjpeg62-turbo  1:2.1.5-4
ii  liblerc4         4.0.0+ds-5
ii  liblzma5         5.8.1-1+deb13u1
ii  libwebp7         1.5.0-0.1
ii  libzstd1         1.5.7+dfsg-1
ii  zlib1g           1:1.3.dfsg+really1.3.1-1+b1

libtiff6 recommends no packages.

libtiff6 suggests no packages.

-- no debconf information

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