Debian Security Bug TrackerDEBIANCVE:CVE-2018-5733CVE-2018-5733
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
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
0.071 Low
EPSS
Percentile
93.9%
A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | isc-dhcp | < 4.3.5-3.1 | isc-dhcp_4.3.5-3.1_all.deb |
| Debian | 11 | all | isc-dhcp | < 4.3.5-3.1 | isc-dhcp_4.3.5-3.1_all.deb |
| Debian | 10 | all | isc-dhcp | < 4.3.5-3.1 | isc-dhcp_4.3.5-3.1_all.deb |
| Debian | 999 | all | isc-dhcp | < 4.3.5-3.1 | isc-dhcp_4.3.5-3.1_all.deb |
| Debian | 13 | all | isc-dhcp | < 4.3.5-3.1 | isc-dhcp_4.3.5-3.1_all.deb |
Related
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
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
0.071 Low
EPSS
Percentile
93.9%