CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
73.1%
Ralph Dolmans and Karst Koymans discovered that Unbound did not properly
handle certain NSEC records. An attacker could use this to to prove the
non-existence (NXDOMAIN answer) of an existing wildcard record, or trick
Unbound into accepting a NODATA proof.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 18.04 | noarch | libunbound2 | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | libunbound-dev | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | libunbound2-dbgsym | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | python-unbound | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | python-unbound-dbgsym | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | python3-unbound | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | python3-unbound-dbgsym | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | unbound | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | unbound-anchor | < 1.6.7-1ubuntu2.1 | UNKNOWN |
Ubuntu | 18.04 | noarch | unbound-anchor-dbgsym | < 1.6.7-1ubuntu2.1 | UNKNOWN |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
73.1%