5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.8 Medium
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
55.4%
By flooding the target resolver with queries exploiting this flaw an
attacker can significantly impair the resolver’s performance, effectively
denying legitimate clients access to the DNS resolution service.
Author | Note |
---|---|
alexmurray | As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs |
mdeslaur | This is unlikely to affect isc-dhcp’s use of bind9-libs and the vendored bind9 libs, marking as negligible |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | bind9 | < 1:9.11.3+dfsg-1ubuntu1.18 | UNKNOWN |
ubuntu | 20.04 | noarch | bind9 | < 1:9.16.1-0ubuntu2.11 | UNKNOWN |
ubuntu | 22.04 | noarch | bind9 | < 1:9.18.1-1ubuntu1.2 | UNKNOWN |
ubuntu | 22.10 | noarch | bind9 | < 1:9.18.4-2ubuntu2 | UNKNOWN |
ubuntu | 23.04 | noarch | bind9 | < 1:9.18.4-2ubuntu2 | UNKNOWN |
ubuntu | 23.10 | noarch | bind9 | < 1:9.18.4-2ubuntu2 | UNKNOWN |
ubuntu | 14.04 | noarch | bind9 | < 1:9.9.5.dfsg-3ubuntu0.19+esm7) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 16.04 | noarch | bind9 | < 1:9.10.3.dfsg.P4-8ubuntu1.19+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
ubuntu | 20.04 | noarch | bind9-libs | < any | UNKNOWN |
ubuntu | 22.04 | noarch | bind9-libs | < any | UNKNOWN |
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.8 Medium
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
55.4%