FreeBSD : BIND -- multiple vulnerabilities (d4c7e9a9-d893-11e6-9b4d-d050996490d0)

Medium Nessus Plugin ID 96473

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

ISC reports :

A malformed query response received by a recursive server in response to a query of RTYPE ANY could trigger an assertion failure while named is attempting to add the RRs in the query response to the cache.

Depending on the type of query and the EDNS options in the query they receive, DNSSEC-enabled authoritative servers are expected to include RRSIG and other RRsets in their responses to recursive servers.
DNSSEC-validating servers will also make specific queries for DS and other RRsets. Whether DNSSEC-validating or not, an error in processing malformed query responses that contain DNSSEC-related RRsets that are inconsistent with other RRsets in the same query response can trigger an assertion failure. Although the combination of properties which triggers the assertion should not occur in normal traffic, it is potentially possible for the assertion to be triggered deliberately by an attacker sending a specially-constructed answer.

An unusually-formed answer containing a DS resource record could trigger an assertion failure. While the combination of properties which triggers the assertion should not occur in normal traffic, it is potentially possible for the assertion to be triggered deliberately by an attacker sending a specially-constructed answer having the required properties.

An error in handling certain queries can cause an assertion failure when a server is using the nxdomain-redirect feature to cover a zone for which it is also providing authoritative service. A vulnerable server could be intentionally stopped by an attacker if it was using a configuration that met the criteria for the vulnerability and if the attacker could cause it to accept a query that possessed the required attributes.

Solution

Update the affected packages.

See Also

https://kb.isc.org/docs/aa-01439

https://kb.isc.org/docs/aa-01440

https://kb.isc.org/docs/aa-01441

https://kb.isc.org/docs/aa-01442

http://www.nessus.org/u?6b699364

Plugin Details

Severity: Medium

ID: 96473

File Name: freebsd_pkg_d4c7e9a9d89311e69b4dd050996490d0.nasl

Version: 3.6

Type: local

Published: 2017/01/13

Updated: 2018/12/19

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:bind9-devel, p-cpe:/a:freebsd:freebsd:bind910, p-cpe:/a:freebsd:freebsd:bind911, p-cpe:/a:freebsd:freebsd:bind99, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2017/01/12

Vulnerability Publication Date: 2017/01/11

Reference Information

CVE: CVE-2016-9131, CVE-2016-9147, CVE-2016-9444, CVE-2016-9778