Public Date:
1466189: CVE-2017-3142 bind: An error in TSIG authentication can permit unauthorized zone transfers
A flaw was found in the way BIND handled TSIG authentication of AXFR requests. A remote attacker, able to communicate with an authoritative BIND server, could use this flaw to view the entire contents of a zone by sending a specially constructed request packet.

Find out more about CVE-2017-3142 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 5.3
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Impact None
Availability Impact None

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (bind) RHSA-2017:1680 2017-07-05
Red Hat Enterprise Linux 6 (bind) RHSA-2017:1679 2017-07-05

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 bind97 Will not fix
Red Hat Enterprise Linux 5 bind Not affected


Red Hat would like to thank Internet Systems Consortium for reporting this issue. Upstream acknowledges Clement Berthaux (Synacktiv) as the original reporter.


The effects of this vulnerability can be mitigated by using Access Control Lists (ACLs) that require both address range validation and use of TSIG authentication in parallel. For information on how to configure this type of compound authentication control, please see:

External References

Last Modified