openldap - security update

Multiple vulnerabilities were found in OpenLDAP, a free implementation
of the Lightweight Directory Access Protocol.

• CVE-2013-4449
  Michael Vishchers from Seven Principles AG discovered a denial of
  service vulnerability in slapd, the directory server implementation.
  When the server is configured to used the RWM overlay, an attacker
  can make it crash by unbinding just after connecting, because of an
  issue with reference counting.
• CVE-2014-9713
  The default Debian configuration of the directory database allows
  every users to edit their own attributes. When LDAP directories are
  used for access control, and this is done using user attributes, an
  authenticated user can leverage this to gain access to unauthorized
  resources.

Please note this is a Debian specific vulnerability.

The new package won’t use the unsafe access control rule for new
databases, but existing configurations won’t be automatically
modified. Administrators are incited to look at the README.Debian
file provided by the updated package if they need to fix the access
control rule.

• CVE-2015-1545
  Ryan Tandy discovered a denial of service vulnerability in slapd.
  When using the deref overlay, providing an empty attribute list in
  a query makes the daemon crashes.

For the stable distribution (wheezy), these problems have been fixed in
version 2.4.31-2.

For the upcoming stable distribution (jessie), these problems have been
fixed in version 2.4.40-4.

For the unstable distribution (sid), these problems have been fixed in
version 2.4.40-4.

We recommend that you upgrade your openldap packages.