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

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
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