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Fedora Update Notification
FEDORA-2020-8e9b62948e
2020-05-28 01:59:14.571950
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Name : unbound
Product : Fedora 31
Version : 1.10.1
Release : 1.fc31
URL : https://nlnetlabs.nl/projects/unbound/
Summary : Validating, recursive, and caching DNS(SEC) resolver
Description :
Unbound is a validating, recursive, and caching DNS(SEC) resolver.

The C implementation of Unbound is developed and maintained by NLnet
Labs. It is based on ideas and algorithms taken from a java prototype
developed by Verisign labs, Nominet, Kirei and ep.net.

Unbound is designed as a set of modular components, so that also
DNSSEC (secure DNS) validation and stub-resolvers (that do not run
as a server, but are linked into an application) are easily possible.

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Update Information:

Security fix for CVE-2020-12662 and CVE-2020-12663
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ChangeLog:

* Tue May 19 2020 Paul Wouters <pwouters@redhat.com> – 1.10.1-1
– Resolves: rhbz#1837279 unbound-1.10.1 is available
– Resolves: rhbz#1837598 CVE-2020-12662 unbound: insufficient control of network message volume leads to DoS
– Resolves: rhbz#1837609 CVE-2020-12663 unbound: infinite loop via malformed DNS answers received from upstream servers
– Updated unbound.conf for new options in 1.10.1
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References:

[ 1 ] Bug #1837597 – CVE-2020-12662 unbound: amplification of an incoming query into a large number of queries directed to a target
https://bugzilla.redhat.com/show_bug.cgi?id=1837597
[ 2 ] Bug #1837604 – CVE-2020-12663 unbound: infinite loop via malformed DNS answers received from upstream servers
https://bugzilla.redhat.com/show_bug.cgi?id=1837604
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This update can be installed with the “dnf” update program. Use
su -c ‘dnf upgrade –advisory FEDORA-2020-8e9b62948e’ at the command
line. For more information, refer to the dnf documentation available at
http://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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