DNS: ISC BIND Referral CNAME and DNAME Assertion Failure Denial of Service
This signature detects attempts to exploit a known vulnerability in ISC BIND9. Successful exploitation leads to denial-of-service conditions.
Extended Description
Mistaken assumptions about the ordering of records in the answer section of a response containing CNAME or DNAME resource records could lead to a situation in which named would exit with an assertion failure when processing a response in which records occurred in an unusual order. Affects BIND 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0-P3, 9.11.1b1->9.11.1rc1, and 9.9.9-S8.
Affected Products
Netapp element_software
References
CVE: CVE-2017-3137
Short Name
DNS:ISC-BIND-CNAME-DNAME-DOS
Severity
Major
Recommended
True
Recommended Action
Drop
Category
DNS
Keywords
Assertion BIND CNAME CVE-2017-3137 DNAME Denial Failure ISC Referral Service and of
Release Date
05/15/2017
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3590
False Positive
Unknown
Vendors
Isc
Netapp
Debian
Redhat
CVSS Score
5.0