package: krb5-kdc-ldap
version: 1.8.3+dfsg-4squeeze7
tags: security pending
Upstream has patched CVE-2014-5353:
In MIT krb5, when kadmind is configured to use LDAP for the KDC
database, an authenticated remote attacker can cause a NULL dereference
by attempting to use a named ticket policy object as a password policy
for a principal. The attacker needs to be authenticated as a user who
has the elevated privilege for setting password policy by adding or
modifying principals.
Queries to LDAP scoped to the krbPwdPolicy object class will correctly
not return entries of other classes, such as ticket policy objects, but
may return success with no returned elements if an object with the
requested DN exists in a different object class. In this case, the
routine to retrieve a password policy returned success with a password
policy object that consisted entirely of zeroed memory. In particular,
accesses to the policy name will dereference a NULL pointer. KDC
operation does not access the policy name field, but most kadmin
operations involving the principal with incorrect password policy
will trigger the crash.
Thanks to Patrik Kis for reporting this problem.
CVSSv2 Vector: AV:N/AC:M/Au:S/C:N/I:N/A:C/E:H/RL:OF/RC:C
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