7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8 High
AI Score
Confidence
High
0.922 High
EPSS
Percentile
99.0%
Konstantin Orekhov discovered that the DHCP server incorrectly handled a
large number of concurrent TCP sessions. A remote attacker could possibly
use this issue to cause a denial of service. This issue only affected
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-2774)
It was discovered that the DHCP server incorrectly handled socket
descriptors. A remote attacker could possibly use this issue to cause a
denial of service. (CVE-2017-3144)
Felix Wilhelm discovered that the DHCP client incorrectly handled certain
malformed responses. A remote attacker could use this issue to cause the
DHCP client to crash, resulting in a denial of service, or possibly execute
arbitrary code. In the default installation, attackers would be isolated by
the dhclient AppArmor profile. (CVE-2018-5732)
Felix Wilhelm discovered that the DHCP server incorrectly handled reference
counting. A remote attacker could possibly use this issue to cause the DHCP
server to crash, resulting in a denial of service. (CVE-2018-5733)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 17.10 | noarch | isc-dhcp-client | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-client-dbgsym | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-client-ddns | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-client-ddns-dbgsym | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-client-udeb | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-common | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-dev | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-relay | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-relay-dbgsym | < 4.3.5-3ubuntu2.2 | UNKNOWN |
Ubuntu | 17.10 | noarch | isc-dhcp-server | < 4.3.5-3ubuntu2.2 | UNKNOWN |
7.1 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8 High
AI Score
Confidence
High
0.922 High
EPSS
Percentile
99.0%