An issue has been found in the parsing of authoritative answers in PowerDNS Recursor, leading to a NULL pointer dereference when parsing a specially crafted answer containing a CNAME of a different class than IN. An unauthenticated remote attacker could cause a denial of service. References: http://seclists.org/oss-sec/2017/q4/382
Created pdns-recursor tracking bugs for this issue: Affects: fedora-all [bug 1524931]
Created pdns-recursor tracking bugs for this issue: Affects: epel-all [bug 1524451]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.