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[USN-2742-1] OpenLDAP vulnerabilities

Posted on 16 September 2015
Ubuntu Security

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Ubuntu Security Notice USN-2742-1
September 16, 2015

openldap vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in OpenLDAP.

Software Description:
- openldap: OpenLDAP utilities

Details:

Denis Andzakovic discovered that OpenLDAP incorrectly handled certain BER=

data. A remote attacker could possibly use this issue to cause OpenLDAP t=
o
crash, resulting in a denial of service. (CVE-2015-6908)

Dietrich Clauss discovered that the OpenLDAP package incorrectly shipped
with a potentially unsafe default access control configuration. Depending=

on how the database is configure, this may allow users to impersonate
others by modifying attributes such as their Unix user and group numbers.=

(CVE-2014-9713)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.04:
slapd 2.4.31-1+nmu2ubuntu12.3

Ubuntu 14.04 LTS:
slapd 2.4.31-1+nmu2ubuntu8.2

Ubuntu 12.04 LTS:
slapd 2.4.28-1.1ubuntu4.6

In general, a standard system update will make all the necessary changes.=


For existing installations, access rules that begin with "to *" need to b=
e
manually adjusted to remove any instances of "by self write".

References:
http://www.ubuntu.com/usn/usn-2742-1
CVE-2014-9713, CVE-2015-6908

Package Information:
https://launchpad.net/ubuntu/+source/openldap/2.4.31-1+nmu2ubuntu12.3
https://launchpad.net/ubuntu/+source/openldap/2.4.31-1+nmu2ubuntu8.2
https://launchpad.net/ubuntu/+source/openldap/2.4.28-1.1ubuntu4.6

 

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