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Fedora EPEL Update Notification
FEDORA-EPEL-2020-339db397ad
2020-11-29 00:39:21.923469
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Name : pngcheck
Product : Fedora EPEL 7
Version : 2.4.0
Release : 2.el7
URL :
http://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.
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Update Information:
Fix buffer overflow (RHBZ #1897485) A global buffer overflow was discovered in
the check_chunk_name function via a crafted png file. ---- New upstream
version 2.4.0: - tweaked color definitions slightly to work better on terminals
with white/light backgrounds - added eXIf support - fixed DHDR (pre-MNG-1.0) bug
---- Enable executable hardening (PIC/PIE) ---- Initial import (#1886858)
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ChangeLog:
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References:
[ 1 ] Bug #1897485 - Private bug
https://bugzilla.redhat.com/show_bug.cgi?id=1897485
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This update can be installed with the "yum" update programs. Use
su -c 'yum update pngcheck' at the command line.
For more information, refer to "YUM", available at
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7\
/html/System_Administrators_Guide/ch-yum.html
All packages are signed with the Fedora EPEL 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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