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Sicherheit: Denial of Service in Heimdal
Aktuelle Meldungen Distributionen
Name: Denial of Service in Heimdal
ID: FEDORA-2017-f0e5ad250c
Distribution: Fedora
Plattformen: Fedora 27
Datum: Mi, 10. Januar 2018, 07:09
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17439
Applikationen: Heimdal

Originalnachricht

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Fedora Update Notification
FEDORA-2017-f0e5ad250c
2018-01-09 23:48:23.438077
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Name : heimdal
Product : Fedora 27
Version : 7.5.0
Release : 1.fc27
URL : http://www.h5l.org/
Summary : A Kerberos 5 implementation without export restrictions
Description :
Kerberos 5 is a network authentication and single sign-on system.
Heimdal is a free Kerberos 5 implementation without export restrictions
written from the spec (rfc1510 and successors) including advanced features
like thread safety, IPv6, master-slave replication of Kerberos Key
Distribution Center server and support for ticket delegation (S4U2Self,
S4U2Proxy).
This package can coexist with MIT Kerberos 5 packages. Hesiod is disabled
by default since it is deemed too big a security risk by the packager.

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Update Information:

Update to 7.5.0 GA release (CVE-2017-17439)
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References:

[ 1 ] Bug #1524546 - CVE-2017-17439 heimdal: NULL pointer dereference via
crafted UDP packets
https://bugzilla.redhat.com/show_bug.cgi?id=1524546
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade heimdal' 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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