Ubuntu Security Notice 584-1 – Jonathan Clarke discovered that the OpenLDAP slapd server did not properly handle modify requests when using the Berkeley DB backend and the NOOP control was used. An authenticated user with modify permissions could send a crafted modify request and cause a denial of service via application crash. Ubuntu 7.10 is not affected by this issue. Ralf Haferkamp discovered that the OpenLDAP slapd server did not properly handle modrdn requests when using the Berkeley DB backend and the NOOP control was used. An authenticated user with modrdn permissions could send a crafted modrdn request and possibly cause a denial of service via application crash.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/64396/USN-584-1.txt
Source: https://packetstormsecurity.com/files/64396/Ubuntu-Security-Notice-584-1.html