Description
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.
Metrics
CVSS 2.0 5.0/10
AV:N/AC:L/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006Exploit, Patch
- http://rhn.redhat.com/errata/RHSA-2012-1139.html
- http://secunia.com/advisories/50086Vendor Advisory
- http://secunia.com/advisories/50159Vendor Advisory
- http://www.openwall.com/lists/oss-security/2012/08/02/5
- http://www.securityfocus.com/bid/54787
- http://www.securitytracker.com/id?1027341Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=842466
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77391
- http://git.fedorahosted.org/cgit/bind-dyndb-ldap.git/commit/?id=f345805c73c294db42452ae966c48fbc36c48006Exploit, Patch
- http://rhn.redhat.com/errata/RHSA-2012-1139.html
- http://secunia.com/advisories/50086Vendor Advisory
- http://secunia.com/advisories/50159Vendor Advisory
- http://www.openwall.com/lists/oss-security/2012/08/02/5
- http://www.securityfocus.com/bid/54787
- http://www.securitytracker.com/id?1027341Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=842466
- https://exchange.xforce.ibmcloud.com/vulnerabilities/77391
Timeline
- Published
- Aug 7, 2012
- Last modified
- Jun 16, 2026
- NVD status
- Modified