Debian Security Advisory DSA 3209-1 (openldap - security update)

Published: 2015-03-29 22:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
openldap on Debian Linux

Recommendations:
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 Linux Distribution Packages.

Summary:
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 Linux Distribution 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 Linux Distribution 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.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2013-4449
https://nvd.nist.gov/vuln/detail/CVE-2014-9713
https://nvd.nist.gov/vuln/detail/CVE-2015-1545

References:

http://www.debian.org/security/2015/dsa-3209.html

Severity
Medium
CVSS Score
5.0
Published
2015-03-29
Modified
2019-03-18
Category
Debian Local Security Checks

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