Ubuntu Security Notice 3307-1 - Karsten Heymann discovered that OpenLDAP incorrectly handled certain search requests. A remote attacker could use this issue to cause slapd to crash, resulting in a denial of service.
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Ubuntu Security Notice USN-3307-1
June 01, 2017
openldap vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
OpenLDAP could be made to crash if it received specially crafted network
traffic.
Software Description:
- openldap: OpenLDAP utilities
Details:
Karsten Heymann discovered that OpenLDAP incorrectly handled certain search
requests. A remote attacker could use this issue to cause slapd to crash,
resulting in a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
slapd 2.4.44+dfsg-3ubuntu2.1
Ubuntu 16.10:
slapd 2.4.42+dfsg-2ubuntu4.1
Ubuntu 16.04 LTS:
slapd 2.4.42+dfsg-2ubuntu3.2
Ubuntu 14.04 LTS:
slapd 2.4.31-1+nmu2ubuntu8.4
In general, a standard system update will make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3307-1
CVE-2017-9287
Package Information:
https://launchpad.net/ubuntu/+source/openldap/2.4.44+dfsg-3ubuntu2.1
https://launchpad.net/ubuntu/+source/openldap/2.4.42+dfsg-2ubuntu4.1
https://launchpad.net/ubuntu/+source/openldap/2.4.42+dfsg-2ubuntu3.2
https://launchpad.net/ubuntu/+source/openldap/2.4.31-1+nmu2ubuntu8.4