DNS: ISC BIND deny-answer-aliases Assertion Failure Denial of Service
This signature detects attempts to exploit a known vulnerability against ISC BIND. A successful attack can result in a denial-of-service condition.
Extended Description
"deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.
Affected Products
Opensuse leap
Short Name
DNS:QUERY:CVE-2018-5740-DOS
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
DNS
Keywords
Assertion BIND CVE-2018-5740 Denial Failure ISC Service deny-answer-aliases of
Release Date
09/25/2018
Supported Platforms
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vsrx-19.2
srx-19.3
srx-branch-12.3
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx-12.3
vmx-19.3
srx-12.3
Sigpack Version
3805
False Positive
Unknown
Vendors
Redhat
Hp
Opensuse
Isc
Netapp
Debian
Canonical
CVSS Score
5.0