TITLE:
Netscape Directory Server LDAP Request Handling Buffer Overflow

SECUNIA ADVISORY ID:
SA13809

VERIFY ADVISORY:
http://secunia.com/advisories/13809/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From local network

SOFTWARE:
Netscape Directory Server 6.x
http://secunia.com/product/3841/

DESCRIPTION:
A vulnerability has been reported in Netscape Directory Server, which
can be exploited by malicious people to cause a DoS (Denial of
Service) or compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the access
control code when handling LDAP requests. This can be exploited to
cause a stack-based buffer overflow by sending a specially crafted
LDAP attribute change request to a vulnerable server.

Successful exploitation crashes the service and may allow execution
of arbitrary code.

The vulnerability has been reported in version 6.21 and prior.

SOLUTION:
Patches in the form of updated libraries are available on request
from the Red Hat Security Response Team.

ORIGINAL ADVISORY:
http://rhn.redhat.com/errata/RHSA-2005-030.html

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