7.8 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
0.157 Low
EPSS
Percentile
95.4%
A very uncommon combination of zone data has been found that triggers a
bug in BIND, with the result that named will exit with a "REQUIRE"
failure in name.c when validating the data returned in answer to a
recursive query.
This means that a recursive resolver that is performing DNSSEC
validation can be deliberately stopped by an attacker who can cause the
resolver to perform a query against a maliciously-constructed zone.