drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mangelnde Eingabeprüfung in Unbound
Name: |
Mangelnde Eingabeprüfung in Unbound |
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ID: |
USN-3673-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.10, Ubuntu 18.04 LTS |
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Datum: |
Fr, 8. Juni 2018, 07:50 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15105 |
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Applikationen: |
Unbound |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3673-1 June 07, 2018
unbound vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS - Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
A security issue was fixed in Unbound.
Software Description: - unbound: validating, recursive, caching DNS resolver
Details:
Ralph Dolmans and Karst Koymans discovered that Unbound did not properly handle certain NSEC records. An attacker could use this to to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick Unbound into accepting a NODATA proof.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS: libunbound2 1.6.7-1ubuntu2.1 unbound 1.6.7-1ubuntu2.1
Ubuntu 17.10: libunbound2 1.6.5-1ubuntu0.2 unbound 1.6.5-1ubuntu0.2
Ubuntu 16.04 LTS: libunbound2 1.5.8-1ubuntu1.1 unbound 1.5.8-1ubuntu1.1
Ubuntu 14.04 LTS: libunbound2 1.4.22-1ubuntu4.14.04.3 unbound 1.4.22-1ubuntu4.14.04.3
In general, a standard system update will make all the necessary changes.
References: https://usn.ubuntu.com/usn/usn-3673-1 CVE-2017-15105
Package Information: https://launchpad.net/ubuntu/+source/unbound/1.6.7-1ubuntu2.1 https://launchpad.net/ubuntu/+source/unbound/1.6.5-1ubuntu0.2 https://launchpad.net/ubuntu/+source/unbound/1.5.8-1ubuntu1.1 https://launchpad.net/ubuntu/+source/unbound/1.4.22-1ubuntu4.14.04.3
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