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CVE-2018-5733

nvd nist
Published: Jan 16, 2019Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

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.

Affected (55)

Show all products
Isc: Dhcp · Redhat: Enterprise Linux Desktop, Enterprise Linux Server, Enterprise Linux Server Aus, Enterprise Linux Server Eus, Enterprise Linux Workstation · Canonical: Ubuntu Linux · Debian: Debian Linux
Isc
1 product
Dhcp
Redhat
5 products
Enterprise Linux Desktop
Enterprise Linux Server
Enterprise Linux Server Aus
Enterprise Linux Server Eus
Enterprise Linux Workstation
Canonical
1 product
Ubuntu Linux
Debian
1 product
Debian Linux
Configuration A
38 vulnerable
Vulnerable SoftwareAffected Versions
Isc
Dhcp
From 4.2.0 to 4.2.8
Dhcp
From 4.3.0 to 4.3.6
Dhcp
Version 4.1-esv
Dhcp
Version 4.1-esv r10
Dhcp
Version 4.1-esv r10_b1
Dhcp
Version 4.1-esv r10_rc1
Dhcp
Version 4.1-esv r11
Dhcp
Version 4.1-esv r11_b1
Dhcp
Version 4.1-esv r11_rc1
Dhcp
Version 4.1-esv r11_rc2
Dhcp
Version 4.1-esv r12
Dhcp
Version 4.1-esv r12_b1
Dhcp
Version 4.1-esv r12_p1
Dhcp
Version 4.1-esv r13
Dhcp
Version 4.1-esv r13_b1
Dhcp
Version 4.1-esv r14
Dhcp
Version 4.1-esv r14_b1
Dhcp
Version 4.1-esv r15
Dhcp
Version 4.1-esv r1
Dhcp
Version 4.1-esv r2
Dhcp
Version 4.1-esv r3
Dhcp
Version 4.1-esv r3_b1
Dhcp
Version 4.1-esv r4
Dhcp
Version 4.1-esv r5
Dhcp
Version 4.1-esv r5_b1
Dhcp
Version 4.1-esv r5_rc1
Dhcp
Version 4.1-esv r5_rc2
Dhcp
Version 4.1-esv r6
Dhcp
Version 4.1-esv r7
Dhcp
Version 4.1-esv r8
Dhcp
Version 4.1-esv r8_b1
Dhcp
Version 4.1-esv r8_rc1
Dhcp
Version 4.1-esv r9
Dhcp
Version 4.1-esv r9_b1
Dhcp
Version 4.1-esv r9_rc1
Dhcp
Version 4.1-esv rc1
Dhcp
Version 4.1.0
Dhcp
Version 4.4.0
Configuration B
11 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Enterprise Linux Desktop
Version 6.0
Enterprise Linux Desktop
Version 7.0
Redhat
Enterprise Linux Server
Version 6.0
Enterprise Linux Server
Version 7.0
Redhat
Enterprise Linux Server Aus
Version 7.4
Enterprise Linux Server Aus
Version 7.6
Redhat
Enterprise Linux Server Eus
Version 7.4
Enterprise Linux Server Eus
Version 7.5
Enterprise Linux Server Eus
Version 7.6
Redhat
Enterprise Linux Workstation
Version 6.0
Enterprise Linux Workstation
Version 7.0
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Canonical
Ubuntu Linux
Version 14.04
Ubuntu Linux
Version 16.04
Ubuntu Linux
Version 17.10
Configuration D
3 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 7.0
Debian Linux
Version 8.0
Debian Linux
Version 9.0

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (19)

Source: security-officer@isc.org
Third Party AdvisoryVDB Entry
Source: security-officer@isc.org
Third Party AdvisoryVDB Entry
Source: security-officer@isc.org
Third Party Advisory
Source: security-officer@isc.org
Third Party Advisory
Source: security-officer@isc.org
Vendor Advisory
Source: security-officer@isc.org
Third Party Advisory
Source: security-officer@isc.org
Third Party Advisory
Source: security-officer@isc.org
Third Party Advisory
Source: security-officer@isc.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.