CVE-2011-1081 Denial of service in n/a
Remote attackers can crash the OpenLDAP daemon by sending a MODRDN request with an empty OldDN field, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1081?
CVE-2011-1081 is a medium-severity denial of service vulnerability in Openldap Openldap, published on 20 Mar 2011. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service (daemon crash) via a relative Distinguished Name (DN) modification request (aka MODRDN operation) that contains an empty value for the OldDN field.
Weakness: CWE-399
Which versions are affected by CVE-2011-1081?
It affects 1 product.
Products include Openldap Openldap.
How do I fix CVE-2011-1081?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2011-1081 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-1081 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Openldap Openldap
Sources
Also known as DEBIAN-CVE-2011-1081, GHSA-697q-5f36-g4h9.