| Description: | Description:
The remote host is missing an update to krb5
announced via advisory USN-334-1.
A security issue affects the following Ubuntu releases:
Ubuntu 5.04
Ubuntu 5.10
Ubuntu 6.06 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
Michael Calmer and Marcus Meissner discovered that several krb5 tools
did not check the return values from setuid() system calls. On systems
that have configured user process limits, it may be possible for an
attacker to cause setuid() to fail via resource starvation. In that
situation, the tools will not reduce their privilege levels, and will
continue operation as the root user.
By default, Ubuntu does not ship with user process limits.
Please note that these packages are not officially supported by Ubuntu
(they are in the 'universe' component of the archive).
Solution:
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 5.04:
krb5-clients 1.3.6-1ubuntu0.2
krb5-ftpd 1.3.6-1ubuntu0.2
krb5-rsh-server 1.3.6-1ubuntu0.2
krb5-user 1.3.6-1ubuntu0.2
Ubuntu 5.10:
krb5-clients 1.3.6-4ubuntu0.1
krb5-ftpd 1.3.6-4ubuntu0.1
krb5-rsh-server 1.3.6-4ubuntu0.1
krb5-user 1.3.6-4ubuntu0.1
Ubuntu 6.06 LTS:
krb5-clients 1.4.3-5ubuntu0.1
krb5-ftpd 1.4.3-5ubuntu0.1
krb5-rsh-server 1.4.3-5ubuntu0.1
krb5-user 1.4.3-5ubuntu0.1
In general, a standard system upgrade is sufficient to effect the
necessary changes.
http://www.securityspace.com/smysecure/catid.html?in=USN-334-1
Risk factor : High
CVSS Score:
7.2
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