GLSA-200709-01 : MIT Kerberos 5: Multiple vulnerabilities

This script is Copyright (C) 2007-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200709-01
(MIT Kerberos 5: Multiple vulnerabilities)

A stack-based buffer overflow (CVE-2007-3999) has been reported in
svcauth_gss_validate() of the RPC library of kadmind. Another
vulnerability (CVE-2007-4000) has been found in
kadm5_modify_policy_internal(), which does not check the return values
of krb5_db_get_policy() correctly.

Impact :

The RPC related vulnerability can be exploited by a remote
unauthenticated attacker to execute arbitrary code with root privileges
on the host running kadmind. The second vulnerability requires the
remote attacker to be authenticated and to have 'modify policy'
privileges. It could then also allow for the remote execution of
arbitrary code.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200709-01.xml

Solution :

All MIT Kerberos 5 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-crypt/mit-krb5-1.5.3-r1'

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 26041 (gentoo_GLSA-200709-01.nasl)

Bugtraq ID:

CVE ID: CVE-2007-3999
CVE-2007-4000