Junos Multiple BIND Vulnerabilities

Published: 2017-04-13 06:24:49
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

Summary:
Junos OS is prone to multiple denial of service vulnerabilities in ISC BIND named.

Detection Method:
Checks if a vulnerable OS build is present on the target host.

Technical Details:
Multiple vulnerabilities where found in the BIND version used by Junos OS: - buffer.c in named in ISC BIND does not properly construct responses, which allows remote attackers to cause a denial of service via a crafted query. (CVE-2016-2776) - named in ISC BIND allows remote attackers to cause a denial of service via a DNAME record in the answer section of a response to a recursive query, related to db.c and resolver.c. (CVE-2016-8864) - named in ISC BIND allows remote attackers to cause a denial of service via a malformed response to an RTYPE ANY query. (CVE-2016-9131) - named in ISC BIND allows remote attackers to cause a denial of service via a response containing an inconsistency among the DNSSEC-related RRsets. (CVE-2016-9147) - named in ISC BIND allows remote attackers to cause a denial of service via a crafted DS resource record in an answer. (CVE-2016-9444)

Impact:
An attacker may cause a denial of service condition.

Affected Versions:
Junos OS 12.1X46, 12.3X48 and 15.1X49.

Recommendations:
New builds of Junos OS software are available from Juniper. As a workaround disable the DNS proxy service.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2016-2776
https://nvd.nist.gov/vuln/detail/CVE-2016-8864
https://nvd.nist.gov/vuln/detail/CVE-2016-9131
https://nvd.nist.gov/vuln/detail/CVE-2016-9147
https://nvd.nist.gov/vuln/detail/CVE-2016-9444

References:

http://kb.juniper.net/JSA10785

Severity
High
CVSS Score
7.8
Published
2017-04-13
Modified
2018-10-26
Category
JunOS Local Security Checks

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