First published: Mon Feb 28 2011(Updated: )
It was reported [1],[2] that OpenLDAP's slapd daemon would crash when it received a request to modify a DN and submits an empty old DN in the request. No binding is necessary, so even an anonymous user could cause slapd to crash. This was reported against OpenLDAP 2.4.23 and was fixed in 2.4.24 [3]. References: [1] <a href="http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6768">http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6768</a> [2] <a href="https://bugzilla.novell.com/show_bug.cgi?id=674985#c1">https://bugzilla.novell.com/show_bug.cgi?id=674985#c1</a> [3] <a href="http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/modrdn.c.diff?r1=1.170.2.8&r2=1.170.2.9">http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/modrdn.c.diff?r1=1.170.2.8&r2=1.170.2.9</a>
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Red Hat OpenLDAP Servers | =2.4.6 | |
Red Hat OpenLDAP Servers | =2.4.7 | |
Red Hat OpenLDAP Servers | =2.4.8 | |
Red Hat OpenLDAP Servers | =2.4.9 | |
Red Hat OpenLDAP Servers | =2.4.10 | |
Red Hat OpenLDAP Servers | =2.4.11 | |
Red Hat OpenLDAP Servers | =2.4.12 | |
Red Hat OpenLDAP Servers | =2.4.13 | |
Red Hat OpenLDAP Servers | =2.4.14 | |
Red Hat OpenLDAP Servers | =2.4.15 | |
Red Hat OpenLDAP Servers | =2.4.16 | |
Red Hat OpenLDAP Servers | =2.4.17 | |
Red Hat OpenLDAP Servers | =2.4.18 | |
Red Hat OpenLDAP Servers | =2.4.19 | |
Red Hat OpenLDAP Servers | =2.4.20 | |
Red Hat OpenLDAP Servers | =2.4.21 | |
Red Hat OpenLDAP Servers | =2.4.22 | |
Red Hat OpenLDAP Servers | =2.4.23 |
http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/modrdn.c.diff?r1=1.170.2.8&r2=1.170.2.9
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CVE-2011-1081 is classified as a critical vulnerability due to the potential for denial of service.
To fix CVE-2011-1081, upgrade OpenLDAP to version 2.4.24 or later.
CVE-2011-1081 affects OpenLDAP versions 2.4.6 to 2.4.23.
Yes, an anonymous user can exploit CVE-2011-1081 to crash the slapd daemon.
The impact of CVE-2011-1081 is that it can cause the OpenLDAP slapd daemon to crash, leading to service interruption.