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CVE-2018-5733

A malicious client can overflow a reference counter in ISC dhcpd

5.9 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

20.2%Up 18.2 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 5.9

A malicious client can overflow a reference counter in ISC dhcpd

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.

Record
CVE-2018-5733
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
EUVDEUVD-2018-17502 5.9

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.

Record
EUVD-2018-17502
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-6f7q-j62j-5545 7.5

A malicious client which is allowed to send very large amounts of traffic (billions of packets)...

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.

Record
GHSA-6f7q-j62j-5545
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-190
Updated
2026-11-02
NVD 7.5

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.

Record
CVE-2018-5733
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-190
Updated
2026-11-02
OSVALPINE-CVE-2018-5733 7.5

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.

Record
ALPINE-CVE-2018-5733
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 7.5

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.

Record
CVE-2018-5733
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 10 moreShow less
OSVDEBIAN-CVE-2018-5733 7.5

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.

Record
DEBIAN-CVE-2018-5733
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRHSA-2018:0469 7.5

Red Hat Security Advisory: dhcp security update

Record
RHSA-2018:0469
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2018:0483 7.5

Red Hat Security Advisory: dhcp security update

Record
RHSA-2018:0483
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-5733 7.5

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.

Record
UBUNTU-CVE-2018-5733
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
5.9 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2018-0410 No score

Updated dhcp packages fix security vulnerability

Buffer overflow in dhclient possibly allowing code execution triggered by malicious server (CVE-2018-5732).

Reference count overflow in dhcpd allows denial of service (CVE-2018-5733).

Record
MGASA-2018-0410
Updated
2026-11-02
OSVopenSUSE-SU-2024:10715-1 No score

dhcp-4.4.2.P1-2.4 on GA media

These are all security issues fixed in the dhcp-4.4.2.P1-2.4 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10715-1
Updated
2026-11-02
OSVSUSE-SU-2018:0810-1 No score

Security update for dhcp

This update for dhcp fixes the following issues:

Security issues fixed:

  • CVE-2018-5733: reference count overflow in dhcpd (bsc#1083303).
  • CVE-2018-5732: buffer overflow in dhclient (bsc#1083302).
Record
SUSE-SU-2018:0810-1
Updated
2026-11-02
OSVSUSE-SU-2018:0810-2 No score

Security update for dhcp

This update for dhcp fixes the following issues:

Security issues fixed:

  • CVE-2018-5733: reference count overflow in dhcpd (bsc#1083303).
  • CVE-2018-5732: buffer overflow in dhclient (bsc#1083302).
Record
SUSE-SU-2018:0810-2
Updated
2026-11-02
OSVSUSE-SU-2018:0812-1 No score

Security update for dhcp

This update for dhcp fixes the following issues:

Security issues fixed:

  • CVE-2018-5733: reference count overflow in dhcpd (bsc#1083303).
  • CVE-2018-5732: buffer overflow in dhclient (bsc#1083302).
Record
SUSE-SU-2018:0812-1
Updated
2026-11-02
OSVUSN-3586-1 No score

isc-dhcp vulnerabilities

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)

Record
USN-3586-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
dhcp
Alpine:v3.10
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.11
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.12
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.13
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.14
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.15
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.16
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.17
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.18
 4.2.0 up to 4.4.1-r0
4.4.1-r0
dhcp
Alpine:v3.19
 4.2.0 up to 4.4.1-r0
4.4.1-r0
Show 72 moreShow less
Affected packages
PackageAffectedFixed
dhcp
Alpine:v3.20
 4.2.0 up to 4.4.1-r0
4.4.1-r0
isc-dhcp
Debian:12
 before 4.3.5-3.1
4.3.5-3.1
isc-dhcp
Debian:13
 before 4.3.5-3.1
4.3.5-3.1
isc-dhcp
Debian:7
From an advisory covering 2 CVEs
 before 4.2.2.dfsg.1-5+deb70u9, plus listed versions
4.2.2.dfsg.1-5+deb70u34.2.2.dfsg.1-5+deb70u44.2.2.dfsg.1-5+deb70u54.2.2.dfsg.1-5+deb70u64.2.2.dfsg.1-5+deb70u74.2.2.dfsg.1-5+deb70u8
4.2.2.dfsg.1-5+deb70u9
isc-dhcp
Debian:8
From an advisory covering 3 CVEs
 before 4.3.1-6+deb8u3, plus listed versions
4.3.1-64.3.1-6+deb8u14.3.1-6+deb8u24.3.1-6+deb8u2+kbsd8u1
4.3.1-6+deb8u3
isc-dhcp
Debian:9
From an advisory covering 3 CVEs
 before 4.3.5-3+deb9u1, plus listed versions
4.3.5-3
4.3.5-3+deb9u1
dhcp
Mageia:6
From an advisory covering 2 CVEs
 before 4.3.5-2.1.mga6
4.3.5-2.1.mga6
dhclient
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-common
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-debuginfo
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-devel
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhclient
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-common
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-debuginfo
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-devel
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhclient
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-common
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-debuginfo
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-devel
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhclient
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-common
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-debuginfo
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhcp-devel
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 12:4.1.1-53.P1.el6_9.3
12:4.1.1-53.P1.el6_9.3
dhclient
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-common
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-libs
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-devel
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhclient
Red Hat:enterprise_linux:7::computenode
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp
Red Hat:enterprise_linux:7::computenode
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-common
Red Hat:enterprise_linux:7::computenode
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-debuginfo
Red Hat:enterprise_linux:7::computenode
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-libs
Red Hat:enterprise_linux:7::computenode
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-devel
Red Hat:enterprise_linux:7::computenode
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhclient
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-common
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-libs
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-devel
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhclient
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-common
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-libs
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp-devel
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
 before 12:4.2.5-58.el7_4.3
12:4.2.5-58.el7_4.3
dhcp
SUSE:Linux Enterprise Software Development Kit 11 SP4
From an advisory covering 2 CVEs
 before 4.2.4.P2-0.28.8.1
4.2.4.P2-0.28.8.1
dhcp
SUSE:Linux Enterprise Server 11 SP4
From an advisory covering 2 CVEs
 before 4.2.4.P2-0.28.8.1
4.2.4.P2-0.28.8.1
dhcp
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
From an advisory covering 2 CVEs
 before 4.2.4.P2-0.28.8.1
4.2.4.P2-0.28.8.1
dhcp
SUSE:Linux Enterprise Point of Sale 11 SP3
From an advisory covering 2 CVEs
 before 4.2.4.P2-0.28.8.1
4.2.4.P2-0.28.8.1
dhcp
SUSE:Linux Enterprise Server 11 SP3-LTSS
From an advisory covering 2 CVEs
 before 4.2.4.P2-0.28.8.1
4.2.4.P2-0.28.8.1
dhcp
SUSE:Linux Enterprise Server 11 SP3-TERADATA
From an advisory covering 2 CVEs
 before 4.2.4.P2-0.28.8.1
4.2.4.P2-0.28.8.1
dhcp
SUSE:Linux Enterprise Desktop 12 SP2
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Desktop 12 SP3
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Software Development Kit 12 SP2
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Software Development Kit 12 SP3
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Server 12 SP2
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Server 12 SP3
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
dhcp
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
From an advisory covering 2 CVEs
 before 4.3.3-10.14.1
4.3.3-10.14.1
isc-dhcp
Ubuntu:14.04:LTS
 before 4.2.4-7ubuntu12.12, plus listed versions
4.2.4-7ubuntu84.2.4-7ubuntu94.2.4-7ubuntu104.2.4-7ubuntu114.2.4-7ubuntu12
Show 10 moreShow less
4.2.4-7ubuntu12.14.2.4-7ubuntu12.24.2.4-7ubuntu12.34.2.4-7ubuntu12.44.2.4-7ubuntu12.54.2.4-7ubuntu12.64.2.4-7ubuntu12.74.2.4-7ubuntu12.84.2.4-7ubuntu12.94.2.4-7ubuntu12.10
4.2.4-7ubuntu12.12
isc-dhcp
Ubuntu:16.04:LTS
 before 4.3.3-5ubuntu12.9, plus listed versions
4.3.1-5ubuntu34.3.1-5ubuntu44.3.1-5ubuntu54.3.3-5ubuntu14.3.3-5ubuntu2
Show 13 moreShow less
4.3.3-5ubuntu44.3.3-5ubuntu54.3.3-5ubuntu74.3.3-5ubuntu84.3.3-5ubuntu94.3.3-5ubuntu104.3.3-5ubuntu114.3.3-5ubuntu124.3.3-5ubuntu12.14.3.3-5ubuntu12.34.3.3-5ubuntu12.44.3.3-5ubuntu12.64.3.3-5ubuntu12.7
4.3.3-5ubuntu12.9
isc-dhcp
Ubuntu:18.04:LTS
 before 4.3.5-3ubuntu5, plus listed versions
4.3.5-3ubuntu24.3.5-3ubuntu34.3.5-3ubuntu4
4.3.5-3ubuntu5
isc-dhcp
Ubuntu:14.04:LTS
From an advisory covering 4 CVEs
 before 4.2.4-7ubuntu12.12, plus listed versions
4.2.4-7ubuntu84.2.4-7ubuntu94.2.4-7ubuntu104.2.4-7ubuntu114.2.4-7ubuntu12
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4.2.4-7ubuntu12.14.2.4-7ubuntu12.24.2.4-7ubuntu12.34.2.4-7ubuntu12.44.2.4-7ubuntu12.54.2.4-7ubuntu12.64.2.4-7ubuntu12.74.2.4-7ubuntu12.84.2.4-7ubuntu12.94.2.4-7ubuntu12.10
4.2.4-7ubuntu12.12
isc-dhcp
Ubuntu:16.04:LTS
From an advisory covering 4 CVEs
 before 4.3.3-5ubuntu12.9, plus listed versions
4.3.1-5ubuntu34.3.1-5ubuntu44.3.1-5ubuntu54.3.3-5ubuntu14.3.3-5ubuntu2
Show 13 moreShow less
4.3.3-5ubuntu44.3.3-5ubuntu54.3.3-5ubuntu74.3.3-5ubuntu84.3.3-5ubuntu94.3.3-5ubuntu104.3.3-5ubuntu114.3.3-5ubuntu124.3.3-5ubuntu12.14.3.3-5ubuntu12.34.3.3-5ubuntu12.44.3.3-5ubuntu12.64.3.3-5ubuntu12.7
4.3.3-5ubuntu12.9
dhcp
openSUSE:Tumbleweed
From an advisory covering 5 CVEs
 before 4.4.2.P1-2.4
4.4.2.P1-2.4

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-5733 is a medium vulnerability (CVSS 5.9) in Isc Dhcp, published March 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 20.2%, the 97th percentile. Fixed in dhcp 4.4.1-r0.

References

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