Pufferüberlauf in pngcheck
ID: | FEDORA-2021-674d704f6c |
Distribution: | Fedora |
Plattformen: | Fedora 33 |
Datum: | Di, 9. Februar 2021, 07:44 |
Referenzen: | https://bugzilla.redhat.com/show_bug.cgi?id=1907428
https://bugzilla.redhat.com/show_bug.cgi?id=1908559 |
Applikationen: | pngcheck |
Originalnachricht |
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Fedora Update Notification
FEDORA-2021-674d704f6c
2021-02-09 00:56:15.132383
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Name : pngcheck
Product : Fedora 33
Version : 2.4.0
Release : 7.fc33
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:
Buffer overflow fixes: 1. Fix buffer overflow on large MNG LOOP chunk
(RHBZ#1908559). 2. Fix a buffer overrun for certain invalid MNG PPLT chunk
contents (RHBZ#1907428).
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ChangeLog:
* Thu Jan 7 2021 Benjamin A. Beasley
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