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|d4c7e9a9-d893-11e6-9b4d-d050996490d0||BIND -- multiple vulnerabilities|
A malformed query response received by a recursive
server in response to a query of RTYPE ANY could
trigger an assertion failure while named is attempting
to add the RRs in the query response to the cache.
Depending on the type of query and the EDNS options
in the query they receive, DNSSEC-enabled authoritative
servers are expected to include RRSIG and other RRsets
in their responses to recursive servers.
DNSSEC-validating servers will also make specific queries
for DS and other RRsets.
Whether DNSSEC-validating or not, an error in processing
malformed query responses that contain DNSSEC-related
RRsets that are inconsistent with other RRsets in the
same query response can trigger an assertion failure.
Although the combination of properties which triggers
the assertion should not occur in normal traffic, it
is potentially possible for the assertion to be triggered
deliberately by an attacker sending a specially-constructed
An unusually-formed answer containing a DS resource
record could trigger an assertion failure. While the
combination of properties which triggers the assertion
should not occur in normal traffic, it is potentially
possible for the assertion to be triggered deliberately
by an attacker sending a specially-constructed answer
having the required properties.
An error in handling certain queries can cause an
assertion failure when a server is using the
nxdomain-redirect feature to cover a zone for which
it is also providing authoritative service.
A vulnerable server could be intentionally stopped
by an attacker if it was using a configuration that
met the criteria for the vulnerability and if the
attacker could cause it to accept a query that
possessed the required attributes.
ge 9.3 lt 10.0
|c6861494-1ffb-11e7-934d-d05099c0ae8c||BIND -- multiple vulnerabilities|
A query with a specific set of characteristics could
cause a server using DNS64 to encounter an assertion
failure and terminate.
An attacker could deliberately construct a query,
enabling denial-of-service against a server if it
was configured to use the DNS64 feature and other
preconditions were met.
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
named contains a feature which allows operators to
issue commands to a running server by communicating
with the server process over a control channel,
using a utility program such as rndc.
A regression introduced in a recent feature change
has created a situation under which some versions of
named can be caused to exit with a REQUIRE assertion
failure if they are sent a null command string.