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Debian Security Advisory DSA-3209-1 security@debian.org
http://www.debian.org/security/ Yves-Alexis Perez
March 30, 2015 http://www.debian.org/security/faq
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Package : openldap
CVE ID : CVE-2013-4449 CVE-2014-9713 CVE-2015-1545
Debian Bug : 729367 761406 776988
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.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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