Linux Security
Linux Security
Linux Security

Fedora 34: pngcheck 2021-3f001ba18b

Date 04 May 2021
46
Posted By LinuxSecurity Advisories
New upstream release 3.0.3. Fixes #1949800, in which certain invalid PNG data could cause an integer division-by-zero, invoking undefined behavior.
--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2021-3f001ba18b
2021-05-05 01:20:25.877430
--------------------------------------------------------------------------------

Name        : pngcheck
Product     : Fedora 34
Version     : 3.0.3
Release     : 1.fc34
URL         : https://www.libpng.org/pub/png/apps/pngcheck.html
Summary     : Verifies the integrity of PNG, JNG and MNG files
Description :
pngcheck verifies the integrity of PNG, JNG and MNG files (by checking the
internal 32-bit CRCs [checksums] and decompressing the image data); it can
optionally dump almost all of the chunk-level information in the image in
human-readable form. For example, it can be used to print the basic statistics
about an image (dimensions, bit depth, etc.); to list the color and
transparency info in its palette (assuming it has one); or to extract the
embedded text annotations. This is a command-line program with batch
capabilities.

The current release supports all PNG, MNG and JNG chunks, including the newly
approved sTER stereo-layout chunk. It correctly reports errors in all but two
of the images in Chris Nokleberg's brokensuite-20061204.

--------------------------------------------------------------------------------
Update Information:

New upstream release 3.0.3. Fixes #1949800, in which certain invalid PNG data
could cause an integer division-by-zero, invoking undefined behavior.
--------------------------------------------------------------------------------
ChangeLog:

* Mon Apr 26 2021 Benjamin A. Beasley  - 3.0.3-1
- New upstream release 3.0.3 (fixes #1949800)
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-3f001ba18b' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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