Fedora 27: FEDORA-2018-3236af7d00 Moderate: Zchunk Crash Prevention

zchunk is a compressed file format that splits the file into independent

chunks. This allows you to only download the differences when downloading a

new version of the file, and also makes zchunk files efficient over rsync.

zchunk files are protected with strong checksums to verify that the file you

downloaded is in fact the file you wanted.

This update does sanity checking when an application passes in a checksum to

verify. Before this release, applications could pass in non-hex values for the

checksum, which could cause zchunk to crash. Now non-hex values will be

rejected.

su -c 'dnf upgrade --advisory FEDORA-2018-3236af7d00' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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

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