CVE-2018-5733

CVSS V2 Medium 5 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2018-5733
  • Assigner
  • security-officer@isc.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-01-16T20:29:00
  • Last Modified Date
  • 2020-01-09T21:08:05
Weakness Enumerations
CWE URL
CWE-190 http://cwe.mitre.org/data/definitions/190.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* 1 OR 4.2.0 4.2.8
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* 1 OR 4.3.0 4.3.6
cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r10_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r12_p1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r13:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r13_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r14_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc2:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r8_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9_b1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:r9_rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1-esv:rc1:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:isc:dhcp:4.4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://kb.isc.org/docs/aa-01567 Vendor Advisory
https://www.debian.org/security/2018/dsa-4133 Third Party Advisory
https://usn.ubuntu.com/3586-2/ Third Party Advisory
https://usn.ubuntu.com/3586-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0483 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0469 Third Party Advisory
http://www.securitytracker.com/id/1040437 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/103188 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-5733
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5733
History
Created Old Value New Value Data Type Notes
2022-05-10 16:54:11 Added to TrackCVE
2022-12-03 16:37:19 2019-01-16T20:29Z 2019-01-16T20:29:00 CVE Published Date updated
2022-12-03 16:37:19 2020-01-09T21:08:05 CVE Modified Date updated
2022-12-03 16:37:19 Analyzed Vulnerability Status updated