Ubuntu 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : krb5 vulnerabilities (USN-1062-1)

Ubuntu Security Notice (C) 2011-2013 Canonical, Inc. / NASL script (C) 2011-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

Keiichi Mori discovered that the MIT krb5 KDC database propagation
daemon (kpropd) is vulnerable to a denial of service attack due to
improper logic when a worker child process exited because of invalid
network input. This could only occur when kpropd is running in
standalone mode
kpropd was not affected when running in incremental
propagation mode ('iprop') or as an inetd server. This issue only
affects Ubuntu 9.10, Ubuntu 10.04 LTS, and Ubuntu 10.10.
(CVE-2010-4022)

Kevin Longfellow and others discovered that the MIT krb5 Key
Distribution Center (KDC) daemon is vulnerable to denial of service
attacks when using an LDAP back end due to improper handling of
network input. (CVE-2011-0281, CVE-2011-0282).

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 51985 ()

Bugtraq ID: 46265
46269
46271

CVE ID: CVE-2010-4022
CVE-2011-0281
CVE-2011-0282