USN-2622-1: OpenLDAP vulnerabilities
26 May 2015
openldap vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 15.04
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
OpenLDAP could be made to crash if it received specially crafted network traffic.
Software Description
- openldap - OpenLDAP utilities
Details
It was discovered that OpenLDAP incorrectly handled certain search queries that returned empty attributes. A remote attacker could use this issue to cause OpenLDAP to assert, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. (CVE-2012-1164)
Michael Vishchers discovered that OpenLDAP improperly counted references when the rwm overlay was used. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2013-4449)
It was discovered that OpenLDAP incorrectly handled certain empty attribute lists in search requests. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2015-1545)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 15.04
- slapd - 2.4.31-1+nmu2ubuntu12.1
- Ubuntu 14.10
- slapd - 2.4.31-1+nmu2ubuntu11.1
- Ubuntu 14.04 LTS
- slapd - 2.4.31-1+nmu2ubuntu8.1
- Ubuntu 12.04 LTS
- slapd - 2.4.28-1.1ubuntu4.5
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.