Fedora Directory Server LDAP dn2ancestor denial of service
| fedora-dn2ancestor-dos (24796) |  Low Risk |
Description:
Fedora Directory Server is vulnerable to a denial of service attack caused by a vulnerability in the LDAP (Lightweight Directory Access Protocol) dn2ancestor component. A remote attacker could exploit this vulnerability by initializing a ModDN operation with a specially-crafted DN to cause the consumption of all available CPU and memory resources, resulting in a denial of service.
Platforms Affected:
- RedHat, Directory Server 7.1
- RedHat, Fedora Directory Server 1.0
Remedy:
Refer to the Fedora Web site for patch, upgrade, or suggested workaround information. See References.
Consequences:
Denial of Service
References:
- Fedora Project Web site, Fedora Dirctory Server Project at http://directory.fedora.redhat.com/wiki/Main_Page.
- GLEG Ltd. Web site, ProtoVer LDAP testsuite at http://www.gleg.net/protover_ldap.shtml.
- Red Hat Bugzilla Bug 179137, CVE-2006-0452 recursion causes OOM with bad DN in dn2ancestor at https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=179137.
- BID-16677: Fedora Directory Server Multiple Remote Denial Of Service Vulnerabilities
- CVE-2006-0452: dn2ancestor in the LDAP component in Fedora Directory Server 1.0 allows remote attackers to cause a denial of service (CPU and memory consumption) via a ModDN operation with a DN that contains a large number of
- RHSA-2006-0270: Red Hat Directory Server 7.1 security update
- SA18960: Fedora Directory Server LDAP Denial of Service Vulnerabilities
Reported:
Feb 14, 2006
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