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USN-999-1: Kerberos vulnerability

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USN-999-1: Kerberos vulnerability

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
10/07/2010
Created
07/25/2018
Added
05/06/2013
Modified
07/09/2020

Description

The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.

Solution(s)

  • ubuntu-upgrade-krb5-kdc

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