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Sicherheit: Mangelnde Rechteprüfung in Heimdal (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in Heimdal (Aktualisierung)
ID: USN-3353-3
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 ESM
Datum: Mo, 24. Juli 2017, 22:36
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11103
Update von: Mangelnde Rechteprüfung in Heimdal

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-3353-3
July 24, 2017

heimdal vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 ESM

Summary:

Heimdal could allow unintended access to network services.

Software Description:
- heimdal: Heimdal Kerberos Network Authentication Protocol

Details:

USN-3353-1 fixed a vulnerability in Heimdal. This update provides
the corresponding updade for Ubuntu 12.04 ESM.

Original advisory details:

 Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered
 that Heimdal clients incorrectly trusted unauthenticated portions
 of Kerberos tickets. A remote attacker could use this to impersonate
 trusted network services or perform other attacks.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 ESM:
 
libkrb5-26-heimdal              1.6~git20120311.dfsg.1-2ubuntu0.2

After a standard system update you need to restart any applications
using Heimdal libraries to make all the necessary changes.

References:
  https://www.ubuntu.com/usn/usn-3353-3
  https://www.ubuntu.com/usn/usn-3353-1
  CVE-2017-11103

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