A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of     service. (CVE-2018-1110)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of
    service. (CVE-2018-1110)

Knot Resolver 2.3.0 (2018-04-23) ================================

Security

--------

  - fix CVE-2018-1110: denial of service triggered by     malformed DNS messages (!550, !558, security!2,     security!4)

  - increase resilience against slow lorris attack     (security!5)

Bugfixes

--------

  - validation: fix SERVFAIL in case of CNAME to NXDOMAIN in     a single zone (!538)

  - validation: fix SERVFAIL for DS . query (!544)

  - lib/resolve: don't send unecessary queries to parent     zone (!513)

  - iterate: fix validation for zones where parent and child     share NS (!543)

  - TLS: improve error handling and documentation (!536,     !555, !559)

Improvements

------------

  - prefill: new module to periodically import root zone     into cache (replacement for RFC 7706, !511)

  - network_listen_fd: always create end point for     supervisor supplied file descriptor

  - use CPPFLAGS build environment variable if set (!547)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
253945	Linux Distros Unpatched Vulnerability : CVE-2018-1110	Nessus	Misc.	high
405079	Alpine: multiple knot-resolver packages: security update to 2.3.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
405079	Alpine: multiple knot-resolver packages: security update to 2.3.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
120353	Fedora 28 : knot-resolver (2018-389bc4e911)	Nessus	Fedora Local Security Checks	high
109709	Fedora 27 : knot-resolver (2018-a120d509ab)	Nessus	Fedora Local Security Checks	high
109702	Fedora 26 : knot-resolver (2018-0c0671072b)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2018-1110

high

Tenable Plugins

high

high

high

high

high

high