Public Date:
1051717: CVE-2014-0591 bind: named crash when handling malformed NSEC3-signed zones
A denial of service flaw was found in the way BIND handled queries for NSEC3-signed zones. A remote attacker could use this flaw against an authoritative name server that served NCES3-signed zones by sending a specially crafted query, which, when processed, would cause named to crash.

Find out more about CVE-2014-0591 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does not affect the version of bind and bind97 as shipped with Red Hat Enterprise Linux 5. For a technical explanation please see

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 2.6
Base Metrics AV:N/AC:H/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (bind) RHSA-2014:0043 2014-01-20
Red Hat Enterprise Linux version 5 (bind97) RHSA-2014:1244 2014-09-16

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 bind Not affected
Red Hat Enterprise Linux 5 bind Not affected

External References