========================================================================== Ubuntu Security Notice USN-1266-1 November 17, 2011
A security issue affects these releases of Ubuntu and its derivatives:
An OpenLDAP server could potentially be made to crash if it received specially crafted network traffic from an authenticated user.
Software Description: - openldap: OpenLDAP utilities
It was discovered that slapd contained an off-by-one error. An authenticated attacker could potentially exploit this by sending a crafted crafted LDIF entry containing an empty postalAddress.
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.10: slapd 2.4.25-1.1ubuntu4.1
Ubuntu 11.04: slapd 2.4.23-6ubuntu6.1
Ubuntu 10.10: slapd 2.4.23-0ubuntu3.7
Ubuntu 10.04 LTS: slapd 2.4.21-0ubuntu5.6
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-1266-1 CVE-2011-4079
Package Information: https://launchpad.net/ubuntu/+source/openldap/2.4.25-1.1ubuntu4.1 https://launchpad.net/ubuntu/+source/openldap/2.4.23-6ubuntu6.1 https://launchpad.net/ubuntu/+source/openldap/2.4.23-0ubuntu3.7 https://launchpad.net/ubuntu/+source/openldap/2.4.21-0ubuntu5.6