Ubuntu Security Notice USN-965-1
9th August, 2010
openldap, openldap2.2, openldap2.3 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
- Ubuntu 9.10
- Ubuntu 9.04
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Software description
- openldap
- openldap2.2
- openldap2.3
Details
Using the Codenomicon LDAPv3 test suite, Ilkka Mattila and Tuomas
Salomäki discovered that the slap_modrdn2mods function in modrdn.c
in OpenLDAP does not check the return value from a call to the
smr_normalize function. A remote attacker could use specially crafted
modrdn requests to crash the slapd daemon or possibly execute arbitrary
code. (CVE-2010-0211)
Using the Codenomicon LDAPv3 test suite, Ilkka Mattila and Tuomas
Salomäki discovered that OpenLDAP does not properly handle empty
RDN strings. A remote attacker could use specially crafted modrdn
requests to crash the slapd daemon. (CVE-2010-0212)
In the default installation under Ubuntu 8.04 LTS and later, attackers
would be isolated by the OpenLDAP AppArmor profile for the slapd daemon.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 10.04 LTS:
- slapd 2.4.21-0ubuntu5.2
- Ubuntu 9.10:
- slapd 2.4.18-0ubuntu1.1
- Ubuntu 9.04:
- slapd 2.4.15-1ubuntu3.1
- Ubuntu 8.04 LTS:
- slapd 2.4.9-0ubuntu0.8.04.4
- Ubuntu 6.06 LTS:
- slapd 2.2.26-5ubuntu2.10
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.