National Cyber Awareness System

Vulnerability Summary for CVE-2012-3429

Overview

The dns_to_ldap_dn_escape function in src/ldap_convert.c in bind-dyndb-ldap 1.1.0rc1 and earlier does not properly escape distinguished names (DN) for LDAP queries, which allows remote DNS servers to cause a denial of service (named service hang) via a "$" character in a DN in a DNS query.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: SECTRACK

Name: 1027341

Type: Patch Information

Hyperlink:http://www.securitytracker.com/id?1027341

External Source: CONFIRM

Name: http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006

Type: Patch Information; Exploit

Hyperlink:http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006

External Source: MISC

Name: https://bugzilla.redhat.com/show_bug.cgi?id=842466

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=842466

External Source: XF

Name: binddyndbldap-dnstoldapdnescape-dos(77391)

Hyperlink:http://xforce.iss.net/xforce/xfdb/77391

External Source: BID

Name: 54787

Hyperlink:http://www.securityfocus.com/bid/54787

External Source: MLIST

Name: [oss-security] 20120802 bind-dyndb-ldap DoS CVE-2012-3429

Hyperlink:http://www.openwall.com/lists/oss-security/2012/08/02/5

External Source: SECUNIA

Name: 50159

Type: Advisory

Hyperlink:http://secunia.com/advisories/50159

External Source: SECUNIA

Name: 50086

Type: Advisory

Hyperlink:http://secunia.com/advisories/50086

External Source: REDHAT

Name: RHSA-2012:1139

Hyperlink:http://rhn.redhat.com/errata/RHSA-2012-1139.html